The Anglers Pal quick release allows the user to quickly and effortlessly remove expensive electronics from the boat for safe storage. With just a push of the plunger pin and a quick twist, the unit is protected. Only for use with Anglers Pal electronics mounts. Constructed of corrosion resistant fiberglass reinforced polypropylene and stainless steel the quick disconnect is lightweight and suitable for fresh or salt water environments. 3-3/4" diameter; 15/16" height Stainless steel mounting hardware included. Not recommended for use with electronics weighing over 5 lbs.