Pliant and durable, the Clip and go Clip strips allow you to create your own jumps out of ordinary PVC piping. the strips feature multiple built-in jump cup heights. The cups are made from UV-stable TPE plastic. and are rigid enough to support a jump bar, but supple enough to bend out of the way on impact. the Heights adjusts every 2" from 4" to 26". They also feature large easy to read molded numbers.