Fully waterproof box sheet, for 5 people, gray, size 280cm x 200cm x 30cm. - Size: 280cm x 200cm x 30cm - Waterproofing: Fully waterproof - Number of people: For 5 people - Color: Gray - Side waterproofing: Sides are also waterproof I washed and used it once after purchase, but I'm selling it because the sound bothered me. I ended up not using the waterproof feature. It has been washed and stored after use.