- Versatile Application: This universal soundproof cotton pad is designed for spare tires and acts as a sound-absorbing cushion for your trunk, providing a quieter driving experience. - Durable Material: Made from high-quality rubber-plastic materials, this sound insulation pad is wear-resistant and heat-resistant. It is also oil-proof and waterproof, ensuring long-lasting performance in various conditions. - Key Features: The soundproof pad not only dampens sound but is also waterproof, offers shock absorption, and has rebound elasticity, making it ideal for various automotive needs. - Easy Installation: With a self-adhesive backing, these sound insulation pads can be easily installed on your vehicle's surface without the need for complex tools, saving you time and effort. - Practical Use Scenarios: 1. For Spare Tires: Reduce noise from spare tires in the trunk, enhancing the overall comfort of your ride. 2. In the Trunk: Line your trunk with these pads to minimize road noise and vibrations, making your driving experience smoother. 3. General Soundproofing: Use these pads in various areas of your vehicle where noise reduction is desired, contributing to a more peaceful environment. This product combines functionality, durability, and ease of use, making it an essential addition for anyone looking to improve their vehicle's sound insulation.