Conveniently holds your items steady and out of the way. Easily and securely clamps to side of desk, no tools needed. Adjusts to fit 3/4" to 2" flat rails. Protective cushioned pads are safe for desktop surfaces. Cup Holder. Small tray provides quick access to clips or loose change. ABS. 4"W x 7"D x 3-1/2"H. Grey.