The spring is the vital element in all spring-based play equipment and the quality of its performance is determined by the oscillation and resistance characteristics of the product itself over time. All of the springs used by Holzhof are guaranteed by the quality of Eibach, an international leader in the production of springs used in a wide variety of fields, from vehicles to industry. The steel springs, exclusively customised for Holzhof in gleaming colours, are mechanically tested to meet the strictest safety standards. The special paintwork that covers the product surface also guarantees maximum protection against corrosion, damage from UV rays and particularly adverse or extreme weather.