Fits 12 14 wheels rims with tyre sizes 155mm to 190mm excluding a class wheels sold secure tested and approved specifically designed for steel wheels locks onto the wheel instead of over the tyre plastic storage case included stronghold sold secure strong arm wheel clamp for use on steel wheels with 12 14 inch rims fitted with tyre sizes of 155mm to 190mm ideal for caravans and trailers and easy to fit sold secure tested and approved at caravantrailer gold standard and a high visibility