Primary Wheel Chock Application Aircrafts, Width 5 in, Height 3 in, Depth 15 in, Urethane, Wheel Chock Surface Tread Smooth, Wheel Chock Style Double with Rope or Chain, Max. Vehicle Weight Not Rated, Wheel Chock, High Visibility Yellow, Includes 24 in Rope, Wheel Chock Base Tread Smooth, 1 Pair