Single block+becket master 57mm< [3615711]

Code: 3615711

Master composite low friction ball bearing blocks are engineered for competitive sailing.
The high strength composite sideplates are to provide top performance of working loads.
Beautiful design and simple use.
Ball bearings: self-lubricant acetal composite
Sheave diameter 57 mm: self-lubricant acetal composite
Cheeks: reinforced glass fiber Nylon composite UV stablized
Swivel shackle: Forged Grade 316 Stainless Steel

WL: Working Load
BL: Breaking Load

NOTE: Working/breaking load of blocks with cam are based on the strength of the cam.