Bison Qwik Change Playground Unit Our unique design allows you to adjust this durable standard to SIX different heights in seconds. And you don’t need to unbolt the backboard from the pole to change heights! The standard can be adjusted from 7-1/2' to 10' at 6'' increments. Installed permanently outdoors on a 3-1/2'' O.D. SCH. 40 pipe.