The London Triangle Clamp has a one piece design which allows for quick and effective clamping. The hardened steel chain adjusts to fit a wide range of vehicle and provides excellent bolt cropper resistance. Bright yellow reinforced triangle cover plate covers all wheel nuts and meets insurers requirements. The clamp is secured by way of a padlock which is supplied with the product. It features a hardened steel 10mm thick square link chain and is fully reinforced with 20mm steel tubing - beware of imitations.