Features: brand new and high quality Durable: Aluminium alloy material, durable, corrosion-resistant, and high strength. Versatile: With Large capacity, it can be installed with bottle cages, and tire inflation cylinders. Rotatable: It features three direction, and up to 90 degrees. Adjustable Range: about 22.2-25.4-31.8mm/0.87-0.99-1.25in. Widely Applicable: Kettle bike adapter, universal adjustable design for most bikes. Specifications: Material: Aluminum Alloy Color: Red/Blue/Black/Silver/Golden Package Weight: approx.70g Size: Mixed Size (More Size Details, Please See Photo.) Applicable Pipe Diameter: 31.8-25.4-22.2mm Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Pc x Kettle Holder for Seat 2Pcs x Washers 2Pcs x Wrenches 3Pcs x Screws