The SMC Tech Rescue pulley is a big performer in a small package. It's compact and lightweight, and offers a nice balance between value and efficiency.
Features
Equipped with an Oilite bushing that improves efficiency in mechanical advantage systems and can tolerate higher impact loads than ball bearings
Aluminum sheave is more durable and will last longer than plastic ones found in most compact rescue pullies
Bell-shaped carabiner hole is designed to pass the gate of a locking carabiner so it's easier to rig your system
Pulley measures 3 x 1.75 x 1.1 in.; sheave diameter measures 1.2 in.