Barton Size 3 Ball Bearing Single Block 45mm, Swivel
The Barton Size 3 ball bearing single block has a 45mm sheave, a stainless steel frame and 30% glass-filled nylon construction for strength. This is a single block with a swivel head.
Features
Ball bearing 45mm sheave for low friction under load
Stainless steel frame, 30% glass-filled nylon body