I start with the assembly: Almost impossible to assemble. The key provided for placing the tires is almost useless. Essentially, I did it with my hands and I crushed my fingers countless times during the process. It has 6 legs that form a hexagon. You have to start the assembly diagonally. First 2 diagonal tires, then another 2 at 60 degrees from the previous ones, and finally another 2 to complete the initial hexagon. If it helps, because it has 30 female connectors, you can grab it every 5 and diagonally.

In terms of use: The rim consists of 6 pieces that fit into each other. After a few jumps by the child, the legs lose their vertical position and lean due to the obviously imperfect application of the fitting pieces. No matter what I tried, it cannot be avoided. The result is, besides the noise that starts to be heard after a while from the bouncing with each jump, the child also feels some insecurity.

The handle: Unstable even with a tight grip, and my 9-year-old child managed to bend it (I know what you're thinking, no, he didn't hang on it, it bent rotationally).

The bouncing: In terms of bouncing, the child found it very satisfactory and fun.

Not recommended, choose something more stable and easier or smarter to assemble.