Features: Versatile Compatibility: Our bike stopwatch conversion seat is compatible with for Garmin for Bryton and for Wahoo making it a great addition to any cyclist's gear. Durable Construction: Made with reusable ABS plastic materials our bicycle computers plate GPS stopwatch holder is built to withstand the toughest rides without rusting or breaking. Secure Mounting: Our shock-proof bike stopwatch mount bracket provides a secure and stable platform for your stopwatch ensuring that it stays in place even on the bumpiest roads. Suitable for Most Bikes: Whether you have a mountain or road bicycle our bike stopwatch stand is designed to fit most bikes making it a versatile accessory for any cyclist. Easy to Install: With its simple and intuitive design our bike stopwatch mount bracket can be easily installed in just a few minutes allowing you to spend more time on the road. Specification: Material: ABS Color: Black Inner Diameter: 22mm Outer Diameter: 33.7mm Thickness: 6mm/6.7mm/5.7mm Compatibility: For Garmin/for Bryton/for Wahoo Notes: Due to manual measurement please allow a slight error in size. Due to the difference between different monitors the picture may not reflect the current color of the item. includes: 1 *Bike Stopwatch Conversion Seat 2 *M3 Screws