Protect Desk-The reinforcement plate for C clamp distributes the stress of the mount to protect the desktop and avoid damage and scratches, especially for fragile desktops, such as thin deskss, expensive desks with soft decorations on the desktop, also compatible with Ikea particle board. Reinforcement for Monitor Mount-the monitor mount reinforcement plate makes it possible for monitor arm to be installed on the tempered glass desk. And it is a better way for c clamp installation for 3 monitor desk mount, 4 monitor mount.