Designed for use with 20ah Powered Mounting kits. A Garmin Livescope GLS-10 specific kit is also sold on our webstore under the boat mounts category. Mount on vertical or horizontal surfaces. Quickly snap in your 20ah mounting system within a second or two. Purchase multiples to easily and rapidly reposition your mounting system in other spots around your watercraft. A 2" inch strap (sold on our accessories page) can also be used to strap the 20ah Quick Release base down if that is preferred over using fasteners. Holes for mounting fastener hardware are 1/4" diameter.