... 0.55mm 18OZ PVC vinyl tarpaulin, water proof and flame retardant material, the flame retardant conforms to BS7837 (current British Standard). And ... to CE certificate. b. We use 12ply strong thread to double stitching for inflatable games such as jumping castle , slide, obstacle ... , waterball, inflatable pool, air tight tents and paintball sports. 2012 new Mascot costumes