Silverback 54" In-Ground Basketball Hoop with Adjustable-Height Tempered Glass Backboard and Pro-Style Breakaway Rim Premier in-ground basketball goal offers the performance of gymnasium-style goal. 2' overhang increases rebound while reducing shake Anchor mounting offers the strength of concrete and the option to unbolt and move goal Tempered glass backboard and pro-style breakaway rim that flexes under pressure. Powder-coated steel pole height adjusts from 7.5 to 10 with all-steel actuator Product is backed by a 5-year limited warranty and includes backboard pad Note-when slamming the pole together make sure you place the mdf or plywood on a flat surface like concrete or asphalt. Do not slam pole on grass or soft ground