Features:<br> Aluminum alloy material, strong and durable.<br> Convenient design and simple installation, easy to install on the bicycles with a locking threaded nut.<br> Can be mounted to 27.2/28.6/30.4/30.8/30.9/31.6mm seatpost of mountain bike and other bicycles.<br> Good finish and lightweight, taking no space and looks beautiful.<br> According to the needs of your bike, there are four colors to choose from<br> <br> Specifications:<br> Material: Aluminum Alloy<br> Weight: 20g<br> Size: As picture shows<br> Type: 31.8mm/34.9mm<br> Color: Black/Red/Blue/Colorful<br> <br> Note:<br> 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.<br> 2.Due to difference between different monitors, the picture may not reflect the actual color of the item.<br> <br> Package includes:<br> 1x Seat Post Clamp<br> Note: 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. Sold by-DIMEANI official store