This stylish mount allows you to take full advantage of all the robust data that your edge providesthe edge is out in front of you for easier heads up positioning and increased safetyfits 318 mm barscompatible with edge 200 500 800 and forerunner 310xt 910xt with the quick release kitweighs just 26 gmade from impact resistant plasticplease note for the mount to work with the forerunner 910xt or 310xt you must remove the screws from the bottom rotate the inner mount and reinsert the screws