Come and see our amazing products. Provides stability and sturdiness; Anti-scratch waterproof board; Clamp opens up to 1.75 inches; Dimensions: 3.9"x3.9"x5.9"Great quality clamps with foam and rubber pad to avoid any scratch, dent or damage on your desk. Tool-free installation with no modification of the desk necessary.Free stand holder to easily keep your phone, pad, tablet safe while typing, watching movies, Pls confirm with us about the packing info, stock color and exact production time before placing your order