Double Pulley Block ( Black )

Features:
- Suitable for hanging pulling objects
- Like flags, pulling water barrels and other
- Strong iron material

Specifications:
Type : Double Pulley
Size : 1/2"(13mm), 3/4"(19mm), 2-1/2"(64mm), 3"(76mm)

- The pulley system makes it easier to lift objects than lifting dead weights by hand. A single pulley essentially changes the direction of attraction or force applied. When a person uses two or more pulleys in a system, then the system also doubles the force applied in addition to changing its direction.