Anti-noise Car Sound, Insulation Cotton Heat, Closed Cell Foam. 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. In the Paste Before the Sound of Cotton Can Be Posted Before a Few Vibration Plate Excellent Effect. The General Needs of the Entire Three-car Sedan About 10 Meters. The Engine Noise Alone. On the Hood on This Point Sound Insulation Cotton is Not As Simple As the Engine Noise Cotton Recommended to Do the Hood. U-slot Noise Effects Need to Use Aluminum Foil Sound Insulation Cotton + Aluminum Plate Butyl Rubber Shock Plate (18-25 or So). Specifications: Shape: Square Material: Rubber Grade: A Flexural Strength: Strong Compressive Strength: Strong Form: Fibrous Size: 200x50cm Thickness: 5mm/6mm/7mm/8mm/10mm/15mm/20mm/25mm/30mm Weight: 0.32kg-1kg 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.