The Barton Size 3 ball bearing fiddle block has 30mm and 58mm sheaves, a stainless steel frame and 30% glass-filled nylon construction for strength. This is a fiddle block with a swivel head.
Features
Ball bearing 30mm and 58mm sheaves for low friction under load
Fiddle layout keeps a slim profile and reduces line twist
Stainless steel frame, 30% glass-filled nylon body