This is a box spring sheet with the dimensions 300cm x 195cm x 14cm. I thought it would be perfect for a king-size bed plus a semi-double, but it didn't stretch as much as I expected, so I'm selling it. This size is hard to find, so it would be a good product if it fits. It has been used once, washed once, and put in the dryer once. I don't think there are any major stains, but I haven't done a detailed inspection, so I'm listing it as is. I am also listing many free items, so please take a look if you are interested. There is a possibility of defects that the seller is unaware of or cannot be confirmed in the photos. Also, the packaging will be kept to a minimum to prevent damage to the product. Please understand that this is a used item before purchasing. 【 2026 Mercari 365-item listing challenge 30 / 365 】