Schaefer Flat Base Aluminum Single Cheek Block / Aluminum 2 in. (51 mm) Dia. Sheave
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Flat, stainless base plate distributes loads to a larger surface area than other designs that place loads on mounting bolts only. Use on spars and deck to lead sheets, halyards, reefing gear, and any control requiring a strong, smooth lead.
Aluminum Cheek Block with Aluminum Sheave. Safe Working Load 1750 lbs.
55-60 to fit curved spars.