We have acquired the anchor to secure a 366 cm trampoline from Hudora. The anchors have a kind of thread with which they can be turned into the soil. This one creates good with a large screwdriver, which is inserted into the upper loop of the ground anchor. So far so good. The straps are supplied to a measured over short. Only with difficulty does one manage to fix them to the anchors as it is in the manual. The buckles are made of plastic and I do have my doubts as to whether they will actually withstand a storm. Personally, I'm going to buy myself so-called swing fuses