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![Harken 45mm Single Element Block w/Swivel [6230]](http://cemarine.com/cdn/shop/products/78752XL_512x512.jpg?v=1557359299)
45mm Single Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are s...
View full details![Schaefer Clear Step Lead Block f/1" Stanchions [506-44]](http://cemarine.com/cdn/shop/products/74732XL_512x512.jpg?v=1576634680)
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Clear Step Lead Block for 1" StanchionsUnique design leads your furling control line outside of your stanchions for a clean lead aft to the cockpi...
View full details![Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100]](http://cemarine.com/cdn/shop/products/55253XL_512x512.jpg?v=1547930722)
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Series 50 All Purpose Block - Single - Universal HeadAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer shea...
View full details![Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140]](http://cemarine.com/cdn/shop/products/55205XL_512x512.jpg?v=1547930401)
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Series 40 All Purpose Block - Single - Stand UpAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves ru...
View full details![Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]](http://cemarine.com/cdn/shop/products/70680XL_512x512.jpg?v=1576633705)
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Series 50 All Purpose Block - Single Stand UpFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal...
View full details![Ronstan Kite Block - Black w/White Sheave (Pair) [RF13101-2]](http://cemarine.com/cdn/shop/products/55071XL_512x512.jpg?v=1547929514)
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Kite Block - Black w/White SheaveFeatures: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trape...
View full details![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]](http://cemarine.com/cdn/shop/products/55219XL_512x512.jpg?v=1547930485)
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Nylatron Sheave Box - Single Upright Lead BlockLead blocks are a low profile solution for leading halyards or other rig sail controls back to clea...
View full details![Ronstan Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket Option [RF25109]](http://cemarine.com/cdn/shop/products/55155XL_512x512.jpg?v=1547930059)
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Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket OptionThe incredible Series 20 Orbit Block is capable of loads up to 250kg...
View full details![Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]](http://cemarine.com/cdn/shop/products/74741XL_512x512.jpg?v=1576634684)
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Single Stainless Steel Block - 60mm SheaveDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to el...
View full details![Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave [704-11]](http://cemarine.com/cdn/shop/products/74738XL_512x512.jpg?v=1576634682)
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Series 7 Flat Base/Aluminum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distribute...
View full details![Schaefer Spring Loaded/Lined Slide/Stainless Steel f/1-1/4" T-Track [705-92]](http://cemarine.com/cdn/shop/products/74742XL_512x512.jpg?v=1576634684)
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Spring Loaded/Lined Slide/Stainless Steel for 1-1/4" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Stainless Steel ch...
View full details![Schaefer Stand-Up Swivel - Aluminum Block [704-62]](http://cemarine.com/cdn/shop/products/74739XL_512x512.jpg?v=1576634683)
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Stand-Up Swivel - Aluminum BlockSpecifications: Sheave Dia. 2-2/8" (60 mm) Max Line 1/2" (13 mm) Diameter includes urethane base 3-3/8" (86 mm) He...
View full details![Schaefer Single Ball Bearing Block [506-05]](http://cemarine.com/cdn/shop/products/74731XL_512x512.jpg?v=1576634680)
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Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Sw...
View full details![Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]](http://cemarine.com/cdn/shop/products/74727XL_512x512.jpg?v=1576634678)
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Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ sheave ensures smooth operation an...
View full details![Schaefer Single Aluminum Block - 60mm Sheave [704-05]](http://cemarine.com/cdn/shop/products/74737XL_512x512.jpg?v=1576634684)
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Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eli...
View full details![Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]](http://cemarine.com/cdn/shop/products/74717XL_512x512.jpg?v=1576634676)
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Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load. Specifications: Sheave Dia. 2" (51 mm) Max...
View full details![Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]](http://cemarine.com/cdn/shop/products/74716XL_512x512.jpg?v=1576634674)
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Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes lo...
View full details![Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]](http://cemarine.com/cdn/shop/products/74718XL_512x512.jpg?v=1576634676)
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Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and ...
View full details![Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]](http://cemarine.com/cdn/shop/products/74724XL_512x512.jpg?v=1576634677)
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Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working ...
View full details![Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]](http://cemarine.com/cdn/shop/products/74708XL_512x512.jpg?v=1576634670)
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Twin Sheet Block for 1-1/4" T-Track - BlackHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex...
View full details![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](http://cemarine.com/cdn/shop/products/74715XL_512x512.jpg?v=1576634673)
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Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load...
View full details![Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]](http://cemarine.com/cdn/shop/products/74706XL_512x512.jpg?v=1576634669)
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Pulpit Furling Lead Spring Loaded Block - 1" Ball BearingThe Stainless Steel spring guarantees maximum support for the block. Delrin™ ball bearing...
View full details![Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave [303-09]](http://cemarine.com/cdn/shop/products/74707XL_512x512.jpg?v=1576634670)
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Series 3 Flat Base/Alum Cheek/Delrin SheaveDelrin™ plain bearing sheave ensures smooth operation and high safe working load. Stainless Steel base ...
View full details![Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]](http://cemarine.com/cdn/shop/products/74705XL_512x512.jpg?v=1576634668)
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Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainle...
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