<http://schema.org/description>
"Lewmar's 105mm Racing Foot blocks have Torlon rollers and dual Delrin ball side thrust races, alloy cheeks and alloy sheaves. Lewmar's Racing range is designed for high strength to weight ratio and smooth rolling for rapid line handling.Blocks with posts have a three-position head allowing the shackle to be locked in-line, perpendicular to the sheave or to spin freely. They come with 2x M10 a 2x M12 fasteners which will work on decks up to 35mm (1 3/8 in.) thick."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.apsltd.com/105mm-racing-single-footblock.html>