The inflatable games are made by PVC Tarpaulin,the Flame Retardant meets the British Standard (BS5852).The material we use has one of the highest tear resistance ratings in the world:25kg/250N. For the seams,we use double seams when putting games together.The most important thing is our seams are done using thread that can withstand great force (17kg) before tearing. We supply the air blower with voltage of 110V,220V,380V as required.Our air blowers have passed the certificate of CE and UL. If you have any more questions,please feel free to contact us.