Challenging modern playground equipment for children aged 6 to 15. The Challenger U has several poles with diameter 127 mm. Several playing elements are connected to the horizontal U-shaped ladder with rungs: spiral and straight fireman’s pole and a vertical ladder with rungs. At the beginning of the Challenger U you can find a metal bean-shaped ladder, a ring fixed between 5 ropes and a start platform in HDPE polyethylene. The other side of the U-shaped ladder has 4 poles with different climbing and sliding elements. At one side there is a climbing net with on top a platform in HDPE polyethylene. A U-shaped bridge with U-stairs connects the 4 poles. A bean-shaped ladder and 2 sliding tubes (diameter 48 mm) are fixed to the last 2 poles. The sliding tubes start with a platform in HDPE polyethylene. All metal parts are treated against rust and polyester coated. The playground unit is fixed directly into the ground with concrete.