The installation of this small trampoline did not ask me any particular problem, the instructions are clear and, with a little patience, we get a well mounted equipment, the very satisfactory production quality. Importantly, stability is ensured by the Ultrasport brand: and indeed, this trampoline presents no dangers of big scale. The materials are solid and all trust. The trampoline is suitable for one child, bordering a young teen (to 80 kg!). To leap several must be chosen greater than 183 cm taile. The value seems very correct, the Ultrasport brand has for some years been favorably known. It is a recommended purchase.