Barton Size 3 Block on Curved Backing Plate PL32, 45mm Plain Bearing

A Size 3 block mounted on a PL32 curved backing plate, made to sit neatly on booms and masts. Stainless steel frame, 30% glass-filled nylon and acetal sheave.

Sheave: 45mm. Max rope: 10mm (3/8in). Manufacturer part number: N03161