[Oliver Timmy] 1 Piece 4 5 Inch Universal Foam Car Speaker Sound Insulation Ring Cotton Bass Door Trim Soundproof Auto Interior Accessories

Feature: Sound Insulation Sealed Speaker To Obtain Better Sound Performance. Absorb The Back Waves, Prevent The Front And Back Waves From Counteracting, And Reduce The Panel Vibration. In Order To Prevent The Spread Of Sound Quality, Absorb The Echo Of The Door, Enhance The Sound Effect Of The Horn, Enhance The Sound Effect In The Car And Seal The Vibration. Description: Color: Black. Type: Soundproof Cotton. Material: Rubber Foam. Size: 4inch 5inch. Package Included: 1x Insulation ring. Note: 1. The color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please refer to the actual product received. 2. Please allow slight manual measurement deviation for the data. Feature: Sound Insulation Sealed Speaker To Obtain Better Sound Performance. Absorb The Back Waves, Prevent The Front And Back Waves From Counteracting, And Reduce The Panel Vibration. In Order To Prevent The Spread Of Sound