Harken Swivel Base with 338 Micro Cam-Matic and 16mm Sheaves Badge_Disc our blocks are the strongest

our blocks are the strongest and best available on the market

Sheave 22 mm Length  51 mm Weight  43 g Maximum Line  6 mm Maximum Working Load  159 kg  Breaking Load  544 kg

Length 73 mm Width  57 mm Car Body Height  24 mm Weight  145 g Mainsheet Block Pin  5 mm Control Block Pin 4 mm Maximum Working Load 386 kg Breaking Load 1134 kg Minimum Curved Track Radius  1

5 m Includes Upper Swivel 164 Includes Drum 165 Includes drum and upper swivel

Remember to keep knife blades sharpened as dull blades can be potentially dangerous

Harken Swivel Base with 338 Micro Cam-Matic and 16mm Sheaves Badge_Disc our blocks are the strongestBall bearing swivel bases feature dual rows of Delrin ball bearings that swivel freely even under high loads. Bases include stand up springs and a U adaptor to accept a variety of appropriate blocks. Height 46mm Weight 136g Min Line 3mm Maximum line 6mm Fastener Spacing 26mm Maximum Working Load 91kg