Made of carbon fiber, the main body weighs around 23g. Compatible with GARMIN, BRYTON, and WAHOO. Also allows for simultaneous mounting of a cycling computer and a GoPro or light. Manufacturer: OG-EVKIN Model Number: CM-002+ Material: Carbon fiber ■Included: Cycling computer mounts x3 (for Garmin, Wahoo, BRYTON), Titanium bolts x2 (for main body attachment), Camera mount (for GoPro, etc.), Light mount, Light strap, Other various mounting screws