Mountain trampolines are durable and last for years. On the frame and springs of every Berg trampoline is a long warranty period. Most Berg Inground trampolines and trampolines on legs are provided with a protective edge whose thickness increases. As a result, the feathers are well overlapped and children's feet do not fit in. In addition, the protective edge is resistant to all weather types, so that it remains beautiful and reliable even after being left outside for a long time.