The size of the basketball rim suitable for teens and adult. It can be installed indoors or outdoors. Basket diameter: 45cm/18inch Basket tube diameter: 1.5cm/0.6inch Equipped with expansion screws, easy to install, you can nail on the wall or backboard, the rim thickened and durable, fixation welding firm, it is a good tool for entertainment. Product Include: 1 x basketball rim, 1 x nylon net, 4 x expansion screws. ！！！NOTE: Please confirm the product size and backboard size before purchase.