Comes with self-adhesive tape, this sound insulation mat can be installed on the car easily. What this mat can offer you are excellent sound absorption performance and heat Insulation performance which enables it to efficiently reduce engine noise and keep warm. Made of high-quality aluminum foil and sponge material, it is lightweight and durable to use. The length of this product is 100cm, the width is 40cm, and the height is 1cm. It is suitable for doors, roof, floor, hood, firewall, chassis, trunk lid, etc. Item Name: Sound Insulation Mat Material: Sponge,Aluminum Foil Color: Silver Color Features: Sound Absorption, Heat Insulation, Waterproof Size Details: 100cm x 40cm x 1cm/39.37" x 15.75" x 0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Paste sound insulation mat, you can use a hair dryer to heat it to make it soft, and then compact it by hand. If the room temperature is lower than 5 degrees Celsius, please heat it with a sun lamp until it becomes soft before sticking. Package Includes: 1 x Sound Insulation Mat Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin