*The product is made by high-speed industrial sewing; It is not a sealed product;It needs the pinhole to run the air blower without interruption;It can achieve the effect of bounce;So, the product leaks and runs without worrying;It is a normal phenomenon. *Material-Size: Environmentally friendly oxford cloth ,PVC;385X300X290CM. *This Bouncy Castles is made of high quality and durable oxford material, which is durable, waterproof and non-toxic;Don’t worry that excessive jumping will shorten the life of the bouncy castle;It is very safe for your children to play in this bouncy castle. *If you have any questions, please contact us by email. *This bounce house is perfect for gifts and holidays. A great gift for your children any time of the year wherever indoor or outdoor. Perfect for birthday gifts, Christmas gifts or to keep little ones busy whenever.