Steel Step Block 1-1/2 to 3-3/4, 1-1/2 Width, Northwestern Tools 36104, 5 Blocks
- This pulley is constructed with premium aluminium, anti-rust, high strength and durable..
- Fine polish ensures sleeks surface, providing smooth and quick rotation to greatly reduce friction..
- Widely used in mountaineering, hoisting, caving, aerial work, heavy objects, etc..
- The inside is provided with a spring for easy one-hand operation..