Features: brand new and high quality Light Weight: The bike holder adapter is compact and lightweight, providing you a light weight riding, which only weighs about 28g and does not increase the burden on riding. Sturdy Material: The premium aluminum alloy is strong and durable, light weight and more wear-resistant. Rust Resistance: The one-piece aluminum alloy is not simple to rust and can withstand the for sun and rain. Stable Design: This bicycle bottle cage adapter fits the frame with stable installation. Easy to Use: The package comes with free installation tools, very simple to use. Specifications: Product Name: Bicycle Bottle Cage Regulator Product Material: Aluminum Alloy Product Weight: 13 grams Color:Black Blue Gold Red for Titanium Type:2 Holes or 4 Holes Note: Please allow 0-1cm error due to manual measurement. 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: 1x Bicycle Bottle Holder Position Adjuster.