Garmin to GoPro adapter with a screw handle. Compatible with all bike lights, cameras, GPS, speedometers etc. with male ended Garmin style base. Can be used with Magicshine TTA out front mount, MJ-6272 out front mount, or any compatible Garmin handlebar mount. This unit has 2 prongs and is meant to be inserted into an existing GoPro compatible handlebar or helmet mount. Plastic material, very light weight.