This universal holder uses the SnapIt! Mounting System's mounting arm to fasten under your electric powered chair's armrest. Meant specifically for use with an electric powered chair, this universal holder is great for adding carrying space to your mobility device. This attachment is a great way to carry a wallet, small pocketbook, remote control, cordless phone, larger cell phone, diabetes test kits, etc. without having to store them in a closed compartment. The holder is made of high density polyethylene that won't break or chip, and it has dimensions of 1 7/8" x 3 7/8" with an overall height of 4."