This is a set of 24 hexagonal sound-absorbing panels made of polyester. 【Product Details】 Shape: Hexagonal Size: 30cm side-to-side Thickness: 12mm Material: 100% polyester fiber Hard type (not a soft sponge type, but a firm panel) 【Contents】 ・Light Gray: 4 panels ・Gray: 10 panels ・Dark Gray: 8 panels ・Dark Gray Half Size: 2 panels Total: 24 panels 【Condition】 Purchase Date: Approximately 1 year ago Usage: Almost unused I purchased extra panels but didn't use them all, and they have been stored in a closet. There are no noticeable scratches or stains. 【Notes】 ・Adhesive tape, push pins, or other mounting supplies are not included. ・This is a hard type, so it differs from the soft sponge type. ・There are shades of gray. Ideal for echo reduction in rooms, YouTube shooting, web conferences, and musical instrument practice rooms. 【Shipping】 Will be wrapped and shipped. No box will be used. Shipped from Tokyo. Stored in a pet-free and smoke-free environment.