Whether swing or jungle gym - these anchors are very important and a super alternative to concrete foundation, the one after 5-8 years, too again "out surgery" must. We recommend the combination with drive-in sleeves on the can the Eyelet from Screw dranschrauben directly. Tip: the two wing ends with a strong pipe wrench something wauseinander turn, then go faster and above all better in the ground. If the wings a few centimeters have eingedrhet in the ground, between the Hacken tread down the soil over. Then you get no "molehill" ...