Low-friction Bullet Blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Specifications Sheave diameter: 1 1/2″ (38 mm) Maximum line diameter: 3/8″ (10 mm) Fasteners: 5 FH mm (#10 FH inch) Mounting hole spacing: 2 7/8″ (73 mm) Cutout: 15/16″ x 2 3/16″ (24 mm x 56 mm) Maximum working load: 300 lb (136 kg) Breaking load: 2000 lb (907 kg) Length: 3 1/2″ (89 mm) Weight: 2.25 oz. (64 g)