※ This product comes in a set of 3, with 72 pieces in total. 【Please refrain from price negotiations as this is the lowest price on Mercari.】 Retail price: 5880 yen Model number: TK003grset24 The following is the manufacturer's product description: Product Features Reduces unpleasant reverberation simply by sticking them on! Made with high-density polyurethane, it reduces sound waves and reverberation, creating a comfortable acoustic space! 9 types to choose from, depending on the number of pieces and placement By using high-density polyurethane, the products can be installed without gaps, reducing sound wave absorption and reflected sound. Uses highly resilient material Made with a highly resilient material, it is ideal for places where everyday sounds resonate, such as bedrooms and living rooms. Easy to care for Can be attached with adhesive tape on the back. Also, dirty areas can be wiped clean with a water-dampened towel. ● Color: Gray ● Size: 24-piece set ● Size: 30cm x 30cm x 0.9cm ● Material: Polyurethane, Mineral Fiber