Certified according to European Standard EN 1176 by TÜV - SÜD. Made of laminated northern pine impregnated in autoclave with non-toxic salts. Composed by n°4 posts in laminated wood section cm 9 x 9 and rectangular beam cm 20 x 9. N°2 plane chairs in anti-bumping rubber with the interior core in press-bent sheet; welded, hot-galvanized, narrow-mesh chains. Alternatively, one polyethylene seat appropriate for physically challenged children can be installed. Assembled by zinc plated steel bolts 8.8 and self-locking nuts. Nut covering elements in coloured nylon according to the standards. Galvanized metal supports for the anchorage into the ground.