SKU: SH5431 Fits 12" - 14" wheel rims with tyre sizes 155mm to 190mm. Ideal for caravans and trailers. Fits into security bolt in under 10 seconds. Sold Secure tested and approved. Locks onto the wheel instead of the tyre. Specifically designed for steel wheels. High security lock. Millions of key combinations. Registered product design. Plastic storage case included.