Ronstan C-Cleat Medium Sneakers one easy method is to

one easy method is to weigh the aft end of the boom and compare it to 1/12 the maximum force in the table

Overall H x W: 3 1/4" x 1 1/4" (82 mm x 32 mm)

166mm (6 1/2") long

It closes with a secure roll-top and buckle

Wichard Single 2 11/64" (55mm) Ball Bearing Block w/ Swiveling Snap Shackle

Ronstan C-Cleat Medium Sneakers one easy method is toProduct Description Ronstan C Cleat Medium Features High strength Superior holding power Lightweight, ultra rigid Corrosion resistant Self lubricating, self cleaning bearings Low line entry effort, easy to release Non rope abrasive Rope 1 8 1 2 in. (3 12 mm) Height 1 in. (26 mm) Width 1 1 4 in. (31 mm) Length 2 5 8 in. (66 mm) Fastener 3 16 in. (M5 mm) Fastener Hole Centers 1 1 2 in. (38 mm) M. W. L. 275 lb. (125 kg) B. L. 550 lb. (250 kg) Weight 1. 8