The 12 mm chain with manual tensioning. Suitable for prolonged driving on snowy or icy roads. • Approved according to the ON V5117 standard, it complies with the requirements of the Italian law DM 10 May 2011 and UNI 11313. • Diamond tread, in special alloy steel, with “D” section links for a safe grip on snow and ice. • High quality carburizing heat treatment. • Self-locking closing device in polymeric material. • Ergonomic and colored components, combined with clear instructions for use and gloves included, allow for quick and clean assembly. • Stopper in polymeric material for the adjustment chain, to preserve the rim. Supplied in a comfortable and elegant semi-rigid fabric case, with Velcro for attachment to the trunk.