This is the newly improved damping type deadening sheet. 【Differences from general-purpose and pre-made products】 〜Made to order directly from the factory〜 ・Quality-oriented, we have focused on the thickness in 0.1mm units. ・We made it extra thick, exceeding 3.0mm, to enhance the damping effect! By perfectly sealing large service holes, etc., and making them into a single box, you can feel better sound quality. ・Eliminating creases, wrinkles and steps have been significantly reduced. Since it's something you can use forever once installed, we wanted to deliver a higher quality product, so we made it. 【About the Brand】 SHOP Kaze Kobo created the harmony of sound and light. "NUTS LAMP". (Nuts Lamp) We made it with the desire for you to fully enjoy your car. 【Size】Approx. 80cm x Approx. 46cm Thickness: Approx. 3.0mm+ Number of sheets: 2 large sheets If you have a desired number of sheets, please inquire in the comment section. SHOP Kaze Kobo also offers many other products, such as headlights, fog lights, and sound quality improvement sheets, so please check out the hashtags and my page! #shop風工房の音質向上委員会 (SHOP Kaze Kobo's Sound Quality Improvement Committee) 【Product Description】 Surface: Matte black aluminum with diamond-shaped processing Logo: Silver color Adhesive surface: Black butyl rubber Heat resistance: -15℃ to 130℃ Installation locations: Inside doors, trunk, floor, ceiling, bonnet, undercarriage You can use it immediately after peeling off the brown backing paper. You can freely cut it to the shape of each service hole. Also, because it's a big size, you can install it with confidence even on large service holes. 【Impressions】 This is my personal impression of using this damping sheet. First of all, the sound quality has improved dramatically and has become more powerful. The midrange used to sound cheap, but now it has a deep, high-quality sound. I could hear the sound of guitars and drums clearly. I was surprised that it could be so different with the same speakers. 【Caution】 ・Due to the nature of butyl tape, the thickness may be slightly uneven in some areas. ・It will be shipped in a roll, so there will be no creases, but there may be some wrinkles. Recommended for those who are using Regulex, Real Schild, and other deadening vibration damping sheets, vibration isolation materials, and damping materials. We support those who are challenging deadening with DIY!