A stylish water bottle cage that allows you to add tools, CO2 inflator kit or inner tube holder with interchangeable Cage Mount and is compatible with all Ninja Cage accessories for basic repair and maintenance.MATERIAL: Engineering grade polymer COMPATIBILITY: Ninja Master+ cage accessories CAGE DIAMETER: Fits standard waterbottlesSIZE: 14.9 x 8.3 x 7.8 cm / 5.9" x 3.3" x 3.1" WEIGHT: 38.5g (1.36oz)