The spring free trampoline was invented by Keith Alexander, a New Zealand inventor. The spring free trampoline is a trampoline with no springs. This invention was released to the public in 2003.
So far they have sold 25,000 trampolines last year making up to $16 million a year in New Zealand.
It is NZ's world safest trampoline with rubber tubes to lower the risk of getting hurt on the trampoline. The sides are made out of a flexible fabric so you can bounce off it without going through.