Specific external snow chains for commercial vehicles and campers up to 3500 kg in total weight. TECHNICAL FEATURES: 0 mm internal dimensions; fixing to one of the original rim nuts (not the anti-theft one); innovative ratchet tightening system; equipped with adjustment elements that reduce dynamic lifting and allow a perfect fit on tires of different sizes ; plates with a new design and welded plates for greater grip and better performances on ice and snow; foldable arms for easy storage in an elegant bag; no contact with alloy wheels; 100% compatible with original rims. Approvals / Certifications / Conformity: Ö-Norm 5117, UNI 11313, TÜV. Not suitable for off-road routes. IVECO Daily (2014-) adaptation kit on request.