Game spring for parks and gardens made with safe materials and long-lasting. The shape is the ealizzata entirely in polyethylene HD tinted in the mass, to high density and completely recyclable. The polyethylene is treated against the rays UV and has fastness to light scale of wool 1 to 8 with value 8. The spring is steel, painted, tested, and certified. The hardware is stainless steel and steel, zinc plated. The support for fixing to the ground: it is given by a robust frame steel then galvanized.