Petzl RollClip A Non Locking Aluminum Pulley Carabiner P74
Designed for easier handling, the RolliClip is sheave-mounted on sealed ball bearings for excellent efficiency. The keylock system prevents any accidental snagging of the carabiner when putting the pulley in place. H-Frame carabiner ensures an improved strength-to-weight ratio and protects markings from abrasion.
Also available in the triact-lock version - Item PZL P74 TL.