4 Pcs 6.5" Foam Speaker Enhancer, Car Door Foam Speaker Rings Blocker, Self Adhesive Soundproof Sponge Kit, Bass Blocker Pad with High Rebound for Stereo Audio Speaker

Specifications: Material: EDPM Color: Black Size: Outer Diameter: 19.5cm/7.67inch; Inner Diameter: 14.5cm/5.7inch; Height: 2.5cm/0.98inch. Weight: 56.1g/Pc Package Includes: 4 * Foam Speaker Enhancer Compatibility: Universal Fitment Features: High Quality: Our speaker fast ring made of ENA sponge with high resilience, can not deformation when squeezed. Waterproof: Ordinary sponges absorb water in rainy days or washing your car, resulting in poor sound quality, damp and moldy. Our fast ring eliminates such problems for you. Self Adhesive: The back of our fast ring comes with 3M glue, which is convenient to use. Please confirm the installation position before installation to avoid multiple tearing that affects the paste effect.