Schaefer Block, Single Alum. w/Alum. Sheave Seacocks They are made of injection

They are made of injection molded Delrin™

Eldridge published the first edition

Heavy-duty black polypropylene handle is extremely durable

EPA and CARB approved UV-resistant hose and primer bulb

Schaefer Block, Single Alum. w/Alum. Sheave Seacocks They are made of injectionSingle block with anodized aluminum cheeks and aluminum sheave. Aluminum sheave runs on nomex(tm) Teflon(tm) bearing for exceptional strength with low friction. Swivel head may be locked in place to avoid twist. Sheave Dia. 2" (51mm), Thickness 15 16" (24mm), Width 2 1 8" (54mm), Length 4 13 32" (112mm), SWL 1750 lbs. (795kg), Weight 6oz. (171g), Max Line 7 16" (11mm)