There are four primary types of basketball hoops available: in-ground, wall-mounted, portable, and poolside. In-ground hoops are the most permanent option, with a backboard attached to a pole that is cemented into the ground. Wall-mounted hoops use a backboard and rim affixed directly to a wall, making them ideal for smaller spaces. Portable hoops are designed to be moved from place to place. These typically come with a base that can be filled with either sand or water for stability. Poolside hoops are designed to be installed in a swimming pool, giving players the ability to take the game underwater.