Name: Double-layer composite rubber-plastic soundproof cotton Material: Ding Qing Rubber Color: Black , Blue , Gray , Purple , Yellow Features: High temperature resistance , low temperature resistance, high rebound rate, self-adhesive, fireproof and waterproof. Price: The price on the page is ten square meters, the entire volume is 2.5 square meters, 50CM * 5M. Use method: Clean the dust on the wall and peel off the kraft paper on the back. About taste! Newly manufactured products have a natural rubber taste. This is normal. We recommend that you find an open space outdoors before use. Spread it out and spread it out. If there is no taste, paste it. But the taste does not mean that the formaldehyde exceeds the standard or is not environmentally safe You can rest assured that our products have been tested by authoritative organizations, fully comply with national standards, and are non-toxic, environmentally friendly and safe products with test reports. About thickness !!! This product is foamed from rubber and plastic and belongs to sponge sound insulation products. Because of its large size, it is time to compress and ship the goods before shipment, plus the backlog during transportation. There may be thickness errors when receiving the goods, but it does not affect the use effect, please read it carefully and know! Do n’t take photos if you care!