TRED GT Wheel Chocks have been designed to safely and securely prevent your Vehicle, Caravan or Trailer from moving. Manufactured from high-quality, automotive grade polypropylene, the GT Chock features a unique TRED-LINK system to connect two pieces for easy storage, incorporates a rope fixing point for easy retrieval and securing points to mount the Chock on a variety of surfaces during use or storage. The aggressive grip profile on the face ensures maximum grip with the tyre.