Car Sound, Hot Mat, Bonnet Insulation, Engine Firewall, Heat Foam, Cotton. Features: This Product Comes with a Strong Adhesive. At Room Temperature Above 0 Degrees Without Additional Heating Can Be Directly Pasted. The Higher the Outdoor Temperature Paste the More Solid Construction Can Not Be Removed After the Paste is Extremely Strong. Noise Experts Recommend Doing Sound Insulation at the Same Time Do Not Forget the Door of the Vibration. Plate Excellent Effect, the General Needs of the Entire Three-car Sedan About 10 Meters. The Engine Noise is a Very Complex System of Sound Engineering. You Need to Do Fenders, Firewall, Instrument Panel U-shaped Slot Sound Insulation Engineering  Specifications: Placement: Hood, Car Door, Tail Cover, Indoor Wall Type: Soundproof Cotton Material: Rubber Foam Size: 50*200cm Thickness: 3mm-10mm Shape: Square Material: Rubber Grade: A Flexural Strength: Strong Compressive Strength: Strong Form: Fibrous Size: 200x50cm Thickness: 3mm/6mm/10mm  Package Included:1 X Roll of Absorbing Cotton. We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.