Cloud 9'S Commercial-Grade Castle Bounce House Is Constructed From Heavy-Duty, 100% Pvc Vinyl. All High-Stress Areas, Including The Bouncing Surface, Mattress Sides, Bottom, And Slide Are Made From Industrial Strength, 15-Ounce (0.47Mm) Pvc. This (Fire Retardant And Lead-Free) Puncture-Proof Pvc Mat..