540001 ModularHose 8.5"x11" Mounting Plate for 3/4" ID System, pack of 1. Large podium style platform/tray with a 1.5" lip for holding items in place. Features 3 mounting beads on the back for attaching one, two, or even three arms. Great for holding up papers, lightweight devices including tablets and devices in cases, pictures, learning aids, workbooks, and more.