This is a FAMOO box spring sheet, king size. It uses gentle, natural materials and is made with 200-thread-count broadcloth for a soft feel. It has anti-mite and antibacterial/odor-resistant treatments, ensuring cleanliness. Please understand that this item has been stored at home before purchasing. [Brand] FAMVOO [Category] Box Spring Sheet [Size] King Size (180cm x 200cm x 25cm) [Color] Beige [Material] 200-thread-count broadcloth [Treatments] Anti-mite, Antibacterial/Odor-resistant Thank you. I purchased this on Amazon for 2650 yen, but I ordered the wrong size. I have opened the package once, but it has not been used.