Ground-level trampolines are now practical for all backyards because Avyna's unique design reduces soil excavation to only 3 cubic yards. Avyna Pro-Line Trampolines introduce a great new phase in the backyard recreation revolution that began over 25 years ago in the outdoor sporting goods industry. As trampoline sales rapidly grew, parent's fear of their children falling off high above ground trampolines led to wide use of safety enclosures. Since the new Avyna Pro-Line Trampoline is just a step above the lawn, instead of 3-feet above ground, a safety enclosure is no longer required. In addition, the Pro-Line In-Ground Trampoline design requires minimal soil removal, making it easy for homeowners to install with or without the use of professionals.