Wheel Chocks / Pack Size:1JThomas JT-1541 Design allows either side of chock to be positioned against tire, Eyebolt for ropes or chains, Height: 6", Width: 7 3/4 ", Durable rubber construction, ribbed pyramid design, resistant to the elements, Length: 9 3/4 ", Ideal for keeping truck trailers in place during loading and unloading operation