... anti-UV, anti-static, anti-crack. Food grade plastic.TubeMade in the national standard galvanize metal pipe, diameter: ... play is consist of slide, double slide, space tube, tunnel, plastic car, airplane, chain bridge, swing bridge, safe panels ... thickness of pipe.2: Materials--LLDPE plastic, galvanized steel tube, food-grade & environmental-friendly Plastic Korea imported LLDPE, non-toxic& tasteless ...