Undefeated in "Practical Caravan's Guide to Security": "If your looking for all out security then this is the one to buy". Re-inforced steel cover plate in bright red powder coated finish. Sold Secure, TUV and TNO approved. High security, integrated drill and pick resistant lock. The Bulldog Titan Heavy duty wheel clamp is available in nine fixed arm width models to fit trailers to commercials.