Advanced Time Trial and Triathlon computer mount, featuring a twist-lock system to secure the Garmin computer between narrow aero bars. This is done by turning the mount to lock to the computer between and below the aero bar extensions, making it ideal for larger EDGE computers like the 800 and 810. FEATURES: CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface Compatibility – 22.2mm diameter TT Extensions Supported Computers – Garmin Edge 20, 25, 200, 500, 510, 800, 1000, and Forerunner 310XT Made in Boise, Idaho, USA Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded