The Stool Tool is an original and patented design. Like the Duel Tool Stool Tool the Stool Tool offers the same mounting application. This model substitutes one of the tool holders for a cup holder. So for those of you who didn't indulged in the Troll-N-Tray Caddie, and/ or opted for the "X Mount", this is your drink holder solution. It has been tested on the water and the interstate at 80+ mph. This system will not let go of your drink. So no matter how the fishing day is going you can have your favorite drink close by to ease the pain of being skunked or celebrate filling the live well.