REC-MOUNT's dual-arm clamp. Compatible with 31.8mm. The top is compatible with Garmin / Bryton. I was using a repair aluminum mount from Rec-Mount, and the compatibility was excellent. By attaching an attachment to the bottom, you can mount various items such as lights and Go Pros. Includes screws. I am selling it because I switched to a different cycle computer mount. It worked without any problems. - Color: Black - Material: Aluminum - Mounting type: Handlebar mount - Compatibility: For cycle computers