This is a mosquito net from the British brand Lifesystems, an outdoor gear manufacturer. The print on the cover is peeling. Also, the ceiling hook that came with it is missing, but you can find a similar one at a home improvement store. It hasn't been used many times, but it has been stored at home for a long time. There are no damages that would cause problems with use. It sells for around 4000 yen at the regular price. Below is the description from the official website: The ULTRANET is the lightest of the Lifesystems mosquito nets, weighing just 220 grams. The ULTRANET is ideal for minimalist travelers looking to save space and weight in their pack. The net is wedge-shaped and hangs from a single hanging point. This can cover a single bed, camp bed or sleeping bag. Features: Lightweight Treatment lasts for 2 years or 20 washes Exceeds WHO netting specifications QuickHang system Specifications: Weight: 220 grams Dimensions: 16L x 8H x 8W cm Dimensions (unpacked): 200L x 185H x 135W cm Item: 1 Impregnated with EX8 Anti-Mosquito treatment Treatment lasts for 2 years or 20 washes Exceeds WHO netting specifications at 156 holes per square inch Durable and lightweight polyester mesh QuickHang system includes adjustable cord, ceiling hook and stuff sack