Clear zinc-plated steel sideplates, 2 3/4" aluminum sheave, bushing, and stainless steel axle. The RP145 has a maximum breaking strength of 25,000 lbs and can accomodate a 3/4 rope. This block weighs 3.65 lbs and has a steel body, swinging side plates, and fixed upper sheave. Affordability and durable design make this a great value. The sides of this block are relatively sharp compared to other blocks, so care must be taken to avoid rope contact. FREE SHIPPING
RP145