Description: There is no doubt that our product is wearable and durable because it use excellent craftmanship with smooth surface and clear printing. Due to the non-slip strip design, it can tightly hold the kettle to prevent it from falling. It can effectively absorb shock to protect your kettle. It is made from aluminum alloy, is durable to use. The length of the product is 7.7 cm, the width is 6.4 cm. Our bicycle bottle cage conversion seat is the most common on the market and is suitable for installation on folding bicycle seat tubes. Item Name: Bicycle Bottle Holder Material: Aluminum Alloy Features: Anti-oxidation, Toughness, Delicate Texture Bottle Cage Hole Distance: 65mm Color: Black, Red Clamp Ring Diameter: 33.9mm Size Details: 7.7cm x 6.4cm/3.03" x 2.52" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bottle Cage Conversion Seat 1 x Hex Wrench 1 x Anti-Slip Strip 1 x Screw