EXCLUSIVE PATENT DESIGN:Comfortable Backrest Design,so you can lie down comfortably to enjoy this comfortable bath time.It's not hard like a normal tub, so when you lean back against it, it's soft and comfortable. SAFE & QUALITY UPGRADED:The bathtub is made from non-toxic PVC material,it is both BPA and phthalates free.Upgrade to a thicker 0.35 mm PVC material,more strong and durable.And newest double leak-proof gas nozzle,second air cover with anti-leakage air cushion,more effective to prevent air leakage. MORE CONVENIENT:Inflates rapidly with included electric air pump. Fast deflation with same pump. Includes convenient drainage hose. Folds easily for storage. Sturdy construction.It is easy to drain ,wipe and store for the next use . SIZE & MULTIPURPOSE:Outer size:66.14" x 30.70" x 18.90",Inner size:52.36" x 22.05" x 18.11".(Suitable for people less than 6.39 feet and 250 pounds.)For indoor or outdoor, summer or winter,it can be used as a swimming pool for children in summer, with zipper cover, you can bath or spa,sauna. NO RISK TO YOU:If you have any questions or problem about our sprinklers,please feel free to contact us , we will do our best to provide you with the best service and products.