Only the safest for your family! The safest trampolines available, they are made with patented technology and are also the toughest, made with the most durable materials (Not the unsafe-threadbare trampolines most think of). Not only fun, but trampolines are great for exercise. Put a bounce in your backyard with a Happy Backyards Trampoline. Springfree, JumpSport, and AlleyOop models available.