... plastic. ROHS kids play system For Children1.Factory Views:2.Materials: 1).component: ball pools, trampoline, slides, space-time tunnels,soft ladders, ... part:galvanized steel.c),soft part:sponge,wood,covered with PVC.3.different sizes and design at your requirment ... luminum,galvanization,as per request).3.DECK,STAIRS,BRIDGESWood inside with sponge and plastisol,rubber or powder cover4.OUTER SAFETYSoft ...