Our competition quality Tire Jump is made to the specifications required by the trial organizations. The frame is made of 1 1/4" piping and disassembles into 6 pieces for easy storage. The tire is made of hollow plastic tubing, attached at the top with chain, and held secure on the sides (from rocking) with a sliding shock-cord support. By simply unclipping the top of the chain and moving the tire up and down, you can quickly adjust it to any height. You have a choice of tire sizes, 24" (AKC), or 19" (USDAA). There is some simple assembly required. The tire will come straight and undecorated. Jump includesFREEcolored duct tape for you to wrap it yourself (red, white & blue), and easy instructions for assembly!