??Environmental Material?- Outside are top grade PU material, inside are waterproof PVC with flexible tensile capabilities even in various sleeping position. The sauna is easy to sweat, and the waterproof fabric ensures that we are not affected by current when using it. ??Safety protection?- To make it safer whiling keeping healthy. When an abnormality occurs the line will be automatically disconnected. And then the heating will stop. Over-temperature automatic power-off function ensures that the product temperature is too high and burns the skin in the sauna.(Temperature adjustable) ??Simple to use?- 2 zippers to release your hands, you can watch video or read during sauna time.180*80cm, this could be used in spa/ salon store or personal beauty care ??Widely Application?- This deeply relaxing treatment is also great for stress relief score joints and stiff muscles, Improve skin quality, improve sleep quality, reduce excess body fat, perspiration detoxification ??Service?- Please don't put it in a place like sofa or bed to store heat. If you encounter any problems, you can contact us as soon as possible. We will provide you with professional after-sales service.