Certificate in accordance with European Standards EN 1176 by the German TÜV - SÜD. Made of pine wood impregnated with non-toxic salts in autoclave. Structure consisting of an upper beam of heart wood and four oblique poles of sap wood of a circular section of Ø 120 mm. Beam and uprights are connected by an attack of tubular galvanized steel. There is a floor seat or cage and rubber bumper with internal aluminum profile and chain-mesh welded and hot-galvanized. Alternatively, one polyethylene seat appropriate for physically challenged children can be installed.Assembled by 8.8 galvanized steel bolts and nuts. Attacks in galvanized metal, for anchoring to the ground.