Made of polyethylene with embossed surface, very resistant to wear, vandalism and UV rays. The steel spring is 20 mm thick, is fitted with anti-jam and is fixed to the ground with a special galvanized steel frame. The handles and footrests are made of high quality polyethylene with internal steel core. All the fixing bolts are protected with appropriate cover-nuts which prevent leakage and tampering. Given the quality and strength of the usend material, this playground does not require maintenance.