Sales service:if you have any doubt,please contact us,we will reply as soon as possible. PVC coated terylene laminated oxford terylene,powered by strong blower,easy set up and take down,inflates in less than a minute. 【Quality Oxford cloth material】: This inflatable castle 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. 【High security】: The bottom of this inflatable castle has a thick non-slip design that enhances the bounce ability;It is safe for children to play in the castle;Don’t worry that your children will get hurt. 【Easy to install】:It wont take long to get your bounce house inflated and running;They’re also relatively easy to deflate and fold in to a compact size in order to be stored when you dont need it inflated anymore! BONUS- The inflatable bounce castle comes with a blower.