Get package and unpacked, The assembly instructions was not easy to understand. Could have been better. I have put together the base frame Then it came time to connect to the jumping mat to the frame. The rubber compounds are to be connected with the included auxiliary part only 2 people and with a lot of power. For me this is definitely a Fehlkonsruktion. Property me 2 bungees brought only then stretched and dam rubber compounds narrow hooked Was a time-consuming and ansrengende drudgery. For a description and the type of structure the Konstrutieure (engineers) have earned a smooth 6. Something like this should not let go of the average consumer is. The unit stands and our granddaughter has hoffertich fun. Armin