1. Core Positioning​ A key protection and noise-reduction component for automotive chassis, installed inside the wheel housing. It blocks gravel and muddy water from impacting the wheel housing and chassis during driving, while reducing tire noise and vibration noise to improve riding comfort. Compatible with all passenger and commercial vehicles.​ 2. Core Functions​ Dual Protection: Prevents gravel from hitting the wheel housing paint (avoiding scratches and rust), and stops muddy water from seeping into chassis components (protecting suspension/brakes);​ Noise & Vibration Reduction: Uses porous/sound-absorbing materials to reduce tire noise transmission to the cabin (noise reduction ≥15dB) and weaken road vibration;​ Weather & Wear Resistance: Made of EPDM rubber/PP composite material, resistant to UV aging, high and low temperatures (-40℃ to 80℃), and oil corrosion;​ Fit & Adaptation: Precisely cut according to the wheel housing shape, with seamless edge fitting, no impact on wheel steering.​ 3. Core Advantages​ Integrated Protection & Noise Reduction: Combines practical protection and comfort improvement, no need for additional accessories;​ Easy Installation & Replacement: Fixed by clips/adhesives, direct OE liner replacement, single-wheel installation completed within 10 minutes;​ Eco-Compliant: Materials meet RoHS environmental standards, odorless and pollution-free;​ Long Service Life: Anti-aging material, service life ≥3 years/60,000km.​ 4. Adaptability​ Vehicles: Covers passenger vehicles (sedans/SUVs/MPVs), commercial vehicles (light trucks/minivans);​ Wheel Sizes: Adapts to mainstream 14-22 inch wheel sizes, supporting custom models for special-shaped wheel housings.​ 5. Service Support​ Contact customer service for vehicle adaptation lists and installation diagrams; free guidance on installation tips is provided.