Ronstan Sheaveless blocks allow soft attachment compatibility for use in high performance dinghy and small sailboat rigging.Ronstan's tiny, modern block with high load capacity at 770 lbs. brings a new breed of light sheaveless technology. For sailors seeking an ultra-compact, ultra-lightweight and durable solution in a tiny, modern block. New SHOCK Blocks weigh only two grams, color-coded and optimized for small lines. They can be attached with webbing, a pigtail, lashing or a Dyneema link. Use for vangs, in-spar purchases, outboard raisers, lazy jacks, kite bridles and 2:1 halyards.Key FeaturesUltra lightweight, compact, duableColour codedImpact resistantSmall line optimisedHigh load capacitySoft attachment compatibleGrit and salt resistantHandles 1/16" to 3/16" dia. lineMax. Working Load: 385 lb.