The bottle holder is made of plastic material, which is lightweight and durable. It can be used on road and mountain bikes, which can help you put the kettle on the bike easily. With great flexibility, which is suitable to hold any size kettle.  There are a few of colors are available to meet the different pursuits of each cycling enthusiast.   Item Name: Bicycle Bottle Holder Material: Plastic Features: Lightweight, Durable, Stable, Easy to Use Size: 15cm x 8cm x 7.3cm/5.90" x 3.15" x 2.87" (Approx.)   Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.   Package Includes: 1 x Bicycle Bottle Holder (Others Not Included)