Self-leveling holder keeps your drink upright regardless of the conditions, including 12oz cans, water bottles, insulated cups, and 32oz containers This kit includes a Level Cup XL with an integrated Tough-Claw which allows for tool-less removal and adjustments on any rail or flat bar 0.625" - 1.5" in diameter Made of high-strength composites for durability and reliability in the most demanding environments Compatible Drink Dimensions: Width Range: 2.6" - 3.5"; Height Range: 3.75" - 11" Clamp Range: 0.625" - 1.14"