The First Team Powerhouse Challenger Adjustable Basketball System gives you everything you need for great practices, play, and recreation. This adjustable goal system is built tough for use by players of all ages, and features loads of convenient options. A 5x5-inch vertical post with a bolt-down anchor base is easy to assemble and easy to move. Rim height adjusts to any number with an EZ-Crank handle (10 feet is marked on the rim height indicator). Y-shaped extension arms support the unit and provide 30 inches of offset from the post to the backboard. The backboard itself is available in your choice of sizes and materials; choose from unbreakable tempered glass or lightweight, durable acrylic. An F186 heavy duty flex goal gives you breakaway action for serious play. The Challenger is covered by a limited lifetime warranty and can be fitted with optional pole and base pads for extra safety. Infinitely adjustable rim height. Unbreakable tempered glass/ acrylic backboards. Y-shaped extension arms with 30-inch offset. Adjustable height with EZ-Crank handle. Available in your choice of backboards.