The Under Desk Mouse Platform will put your mouse exactly where you need it! This clip on mouse pad is the perfect ergonomic computer accessory! The clamps are made of sturdy metal and plastic Clamps to work surface up to 1.57" Brings the mouse down to the arm-rest height, providing you with the ultimate in computing comfort Platform rotates 360 degrees to keep the mouse under the desk Built-in mouse cable clip keeps your mouse in place Assembly level/degree of difficulty: Easy.