This is a universal self-leveling drink cup holder. The drink cup holder has two pivot points, allowing for your drink to always stay upright and never spill. The mounts rotates 360 degrees. The compact designs allows easy installation in a wide variety of applications including wheelchairs, scooters, medical carts, bicycles and more. Additional mounting hardware is needed to support this cup holder. Preview TAG's Mounts and Adjustable Extension Arms for this product.