Description:size:200mmx200mmx7mm/220mmx220mmx7mm/235mmx235mmx7mm/310mmx310mmx7mm Installation Notices:1, Please clean the surface you want to paste.2, Make insulation materials and sheet metal firm fit, and play best adhesive, damping performance3, Do not cover the chassis wiring or air holes when you installation4, Appropriate use of adhesive tape will strengthen connections effect5, Paste Aluminum Soundproof/Damping Plate,you could heat with a hair dryer to make it soft, then compacted by hand. If the room temperature is below 5 degrees Celsius, first with sun lamp heating it until soft. Then remove the wax paper and paste it6, A successful installation process is best not to repeat tear paste, paste effect won’t be damaged7, The extra insulation can be pasted in some hidden place Package includes:1 X Foil Self-adhesive Insulation Cotton