Ronstan Orbit Series 55 Single Ratchet Block, w/Swivel Head Ronstan Series 60 Using both the sheets at

Using both the sheets at once allows the trimmer to blow off the main quickly when rounding the top mark and trim on quickly when hardening up after rounding the bottom mark

Stainless Steel ball bearings

Working Load - 8995 Lbs (4560 kg)

Delrin(tm) ball bearing sheave has a low profile keeping control lines/halyards close to the deck on a low-friction sheave

Ronstan Wide Dee Shackle w/ 3/8" Pin

Ronstan Orbit Series 55 Single Ratchet Block, w/Swivel Head Ronstan Series 60 Using both the sheets atProduct Description Ronstan Orbit Series 55 Single Ratchet Block, w Swivel Head Features Automatic and Manual ratchet in one block Up to 20: 1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points. Measurements Sheave 55 mm Max. Rope 10 mm Max. Cable mm Pin mm M. W. L. 250 kg B. L. 650 kg Weight 82