Soundproof: Car soundproof cottons can effectively absorb and reduce noise, maintain flame retardant and fireproof performance for a long time, and improve driving comfort and securityMaterial: Car sound acoustic absorption cottons are made of cotton material, which is soft and wear resistant to ensure long term performance and reliabilityEasy to install: White insulation mats, with high reliability and performance, easy to install and use, with self sticky material, can be pasted and fixed to provide you with a better fit effectQuality: Automotive sound deadeners, professional manufacturing, stable performance, waterproof, easy to clean and maintain, suitable for use in various environments, easily improve sound effects, and reduce external noise interferenceWide application: Sound dampening pads adopt a 16 mm thickened design and are widely used. It is suitable for door panels, tires, trunks, and other parts of most vehicles. It is a beautiful and practical universal automotive accessory Specification: Material: Cotton Size Chart: 80 cmx50 cm/31.50 inchx19.69 inch Package Includes: 6x Car Soundproof Cottons Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.