The new, versatile Ronstan Shock Block Sheaveless Pulley is only 7/8" long, yet it is very strong, super lightweight, and designed for performance.We would not recommend these Shock Blocks on foil kites. The pulleys on foil kites move quite a bit more and the bridle line is usually thinner which may wear out faster on the Shock Block.Features: Ultra lightweight anodized aluminum at only 2g! Compact, durable, and impact resistant Color coded ? Red, blue, green/gold or gray Small line optimized High load capacity ? 350kg (770lb) breaking load Grit and salt resistant Specifications (each): Weight: 2.50 g (.01 oz) Maximum working load: 175 kg (385 lb) Breaking load: 350 kg (770 lb) Length: 22.9 mm (7/8") Width: 14.9 mm (9/16") Depth: 8.5 mm (5/16") Lead height: 17.9 mm (11/16") ? Block must be lashed through hub. Line capacity: 1.4-5.0 mm (1/16"-3/16") Optimum line capacity: 1.4-3.0 mm (1/16"-1/8")
