Handlebar Bicycle Bike Out-Front Mount Holder For Garmin Edge 200 500 510 800 810 1000 GPS(31.8/25.4mm) by HOLACA (Black) Rock solid, stiff & secure grip Easy to fit - no need to remove tape/grips/levers etc., simply opens up and you bolt on with an alien key. This is not the inferior cheaper style that snaps when you do this, or in cold weather! Sits in front of your stem/bar so you can look at your Garmin easily, keeping your eyes on the road/trail as well. Compatible with computers with 1/4 turn twist lock interface. Basically it's used for Garmin with 1/4 turn twist lock surface.