Wichard Double 1 49/64" (45mm) Ball Bearing Block w/ Swivel Head One-Design Covers Inside dimensions: 50 mm

Inside dimensions: 50 mm

Height H - 6 3/16 in

Easy installation: It takes a few minutes to install it on a eye strap of the boom

Height: 1 1/8" (2 9mm)

Wichard Double 1 49/64" (45mm) Ball Bearing Block w/ Swivel Head One-Design Covers Inside dimensions: 50 mmProduct Description Wichard Double 1 49 64" (45mm) Ball Bearing Block w Swivel Head Features: Weight: 6 oz. (170 g) Sheave diameter: 1 49 64" (45mm) Shackle Diameter: 13 64" (5mm) Length: 3 13 16" (97mm) Width: 1 15 16" (49mm) Thickness: 1 13 32" (46mm) Working load: 1058 Lbs (480 kg) Breaking load: 2200 Lbs (1000 kg) Rope Size: 13 32" 13 64" (10mm) Forged Shackle: 13 64" (5mm) Applications Mainsail systems and travelers Spinnaker sheets Genoa sheets