Designed to slide over angled trampoline poles, the Versahoop Angled Adapters provide a vertical post to clamp on your trampoline basketball hoop. Since there is no standard angle for trampoline products, the adjustable angle adapter allows you to flexibility to get it right for your trampoline. Please make sure you measure the diameter of your trampoline poles to get the proper fit. This is the 1.5" adapter. Sold separately are 1" and1.25" adapters.