Specification: Material: Acrylic Thickness: 4mm Suitable for motherboard: For ATX motherboard Size: 330 x 268mm / 12.99 x 10.55 inch (appr.) Package List: 1 x Acrylic Frame 1 x Wrench 1x Mounting screw 1x Bracket Note: 1.Need to be patient and follow the instructions to assemble and DIY. 2.Support for ATX motherboard. 3.Regular maintenance of the acrylic panel will maintain the brightness as before.