UPGRADED FABRICS SAUNA TENT Sannewstartu steam sauna kits use hot air rubber on the bottom to prevent leakage, while the exterior is made of new upgraded Heavyweight Oxford Composite Cotton Fabric cloth to effectively prevent heat loss. The inside of the steamer is lined with 304 stainless steel to resist high temperature and corrosion, and the 4 liter capacity steamer can be used for 95 minutes after filling with water. PERFECT SIZE, FAST HEATING 70.9 "x31.5 "x31.5". Suitable for people who are 5 feet-6.6 feet tall, it allows you to sit comfortably in the chair and stretch your legs easily. The transparent windows allow you to have a wide view, and the removable window can be opened directly by zipper for fresh air. 360 Omni-directional steam generator can fill the whole sauna in 10 minutes.