Series 29 Single V-Jam block, becket, removable clevis pin top. Lightweight durable construction. Economical. Maintenance free. Allows fast, sure cleating of control lines. Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Use for vang, cunningham and trapeze retriever systems on dinghies. Also use for leech line tackles, bunk adjusters etc on smaller yachts. Made from U.V. stabilised Acetal sheaves and 316 Grade stainless steel. Dimensions: Sheave ? 25 mm Max. Rope ? 5 mm