The Alt-Position Cage Mounts from Topeak allow you to adjust the position of the bottle holder mount up or down, which often solves issues with small frames and limited space. This means not only bottle holders can be repositioned, but also pumps and toolboxes that are designed for the bottle holder mount. For example, two bottle holders from the Topeak Ninja series can also be placed on your bike using this mount. Details: - Compatible with Topeak TRI-BackUp Elite, Omni BackUp Elite, and Ninja bottle holder series - Suitable for bottle holders as well as pumps and toolboxes designed for the bottle holder mount - Material: Aluminum - Screw length: 9 mm Included in the delivery: - 1 set of Alt-Position Cage Mount (2 pieces) including screws