Plastic Far Side Box Support - Mounts quickly in the back of the box to Support Box Against Drywall.Plastic Far Side Box Support features include: Mounts quickly in the back of the box to Support Box Against Drywall Designed for 3-5/8” steel studs May be used on standard 1-1/2” or 2-1/8” deep boxes No tools required Order Qty of 1 = 1 Piece Below is more info on our Plastic Far Side Box Support