Features: Quality: Aluminium alloys materials, corrosion-resistant, and high strength. Practical: With Large capacity, it can being installed with bottle cages, and tire inflation cylinders. Rotating: It features three direction, and up to 90 degrees. Adjusted: about 22.2-25.4-31.8mm/0.87-0.99-1.25in. Widely Applicable: Bottle bike adapter, universal adjusted designs for most bikes. Specifications: Materials: Aluminum Alloys Color: Redness/Blue/Black/Silver/Golden Package Weight: approx.70g Size: Mixed Size Applicable Pipe Diameter: 31.8-25.4-22.2mm Package Includes: 1Pc Bottle Rack Base 2Pcs Washers 2Pcs Wrenches 3Pcs Screws note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!