including : 1pcs light mount ,come with 2pcs differient size rubber rings
Material: alloy 6061-t6 with rubber ring, 2 sizes ,fit for differient shapes round or cateye square Light. like cateye light
You computer mount must have the gopro adatper, so it can useful for you.
FOURIERS HA-GP002 Bike Light Mount Holder for Garmin Bryton Computer Mounnt & Gopro Adapter Cateye Alloy 6061-t6 Silver - B07695W2PM