snug fit and the non-slip finish reduces ride-up

Simple and reliable design

An educational game for sailors of all ages

Non catch cuffs

Ronstan Series 75 Core Block, Single RF74100 Harken snug fit and the non-slipFEATURES Class leading performance and sleek, contemporary styling Excellent dynamic and high static load performance Less than half the friction of the nearest competitor Universal head with full 3 axis articulation Head posts can be locked at 0 or 90 degrees, by using a 2. 5mm Hex Key Alloy Rope Wire sheave version also available Central hub hole can be used as a becket take off or tie up point, Max 13. 5mm line Sheave 75 mm Max. Rope 14 mm Max.