Our tramp is about to be retired after 10 years out in the weather with no maintenance. The frame has now rusted through but the mat and net are still almost like new. There is no wear visible at all in the mat. Three boys have jumped daily for 10 years, for hours a day. It's been used for exercise, fun, socializing, quiet time, music listening, showing off, escaping the family, parties, meditating, philosophizing, everything. Undoubtedly the best investment we ever made - way better than the pool. Even though the boys are now finishing school and leaving home, they want it replaced straight away. Buy one, you won't regret it.