Recommended for boats up to 32 to 38 feet, Complete kit of blocks, eye straps & cleats, Rope is not included, Set consists of: 2 #HT2036 top mast return (single foot block) 39 mm, 6 #62414 cascade block (single fixed head) 28 mm, 8 #91021 boom attach (eye strap s/s), 2 #WM02 plastic cleat, instructions, screws or rivets are not included, Rope calculator : 2.75 x P ( P is the distance between the gooseneck to the top mast) x 2.