Item Details: *100% brand new and high quality *Made of high quality material, durable and practical to use *6mm thick car soundproof mat, soundproof and thermal insulation foam pad *Reduce engine noise, tire squeak, road noise, wind noise, etc. *Used inside and outside the vehicle. *Easy to install, suitable for all types of vehicles, will not cause metal corrosion *Application range: boots, wheel arches, body panels, floors, under seats, floors, interior bulkheads KTV, etc. *Note: Do not apply directly to heat sources, including: exhaust pipes or hot turbine tubes *Material: Aluminum + PE cotton *Surface Color: White(As pictures show) *Optional Size: 50*80cm, 30*50cm, 50*50cm, 100*40cm(Approx.) Installation Steps: *Remove the door panel *Reinstall the screws back to the original place, it is easy to find when installing, avoid covering the hole *Use the roller tool to make the insulation material and the metal sheet firmly fit, and to achieve the best adhesion and shock absorption performance. *According to the effect you want to choose, choose construction sound insulation board, sound insulation board or insulation cotton. *You can also use on the roof floor, hood, firewall, chassis, trunk, trunk lid, etc. Do not cover the chassis wiring or ventilation holes. Package Contents: 1*Soundproof Mat Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.