This is a set of 10 sound-absorbing materials (sponge-like material) for doors, interior panels, and speaker surrounds. Due to this being a slightly defective product, the usual price of 2600 yen is reduced to 1980 yen. Quantities are limited. Please order quickly. 【Reason for Defect】 The thickness of the 10 pieces is 20-25mm. It is a few millimeters thinner than the standard version. Other than that, the length, width, quality, and shape are the same. Brand new and unused. It can be combined with deadening sheets, etc., and further improvement in sound quality can be expected! Born from the voices of many customers! It took half a year to commercialize, and we were particular about the quality and shape! We had 3 people listen and compare more than 10 types of materials, and we carefully selected the thickness and material from scratch. We created it with the intention of satisfying even the experts! 【Contents】 Sponge-like material (speaker surround sound-absorbing material) x 10 Size: Approximately 20-25mm x 25mm x 590mm per piece 【Features】 ■ Sponge-like material The shape and material were designed to maximize the effect even in the narrow environment of speakers and interior panels! The low-rebound, moist material, like sponge cake, will not damage the speakers. Please touch it once and feel its gentle texture! The sponge-like material set uses a wave shape! This wave shape is also widely used in concert halls and music studios. By making the surface area wider than a flat shape, more reflected sound can be absorbed, and further improvement in sound quality can be expected. 【Great value set!】 Normally 398 yen per piece, 3980 yen for 10 pieces, → Special discount price: 2600 yen for 10 pieces!! Furthermore, a special bargain price due to the defect: 1980 yen for 10 pieces! Shop Kaze Kobo also sells many other products, such as headlights, fog lights, and sound quality improvement sheets, so please check out the hashtags and my page! #shopKazeKoboSoundQualityImprovementCommittee 【Specs】 Material: Synthetic rubber Heat resistance: 120° Cold resistance: -40° 【Caution】 ・Be sure to degrease and remove dust before installation. ・Please be careful not to interfere with the power windows.