In Ground Trampolines (IGT) are the safest bet among the other trampoline styles and it's been recommended also by The American Academy of Orthopedic Surgeons. In-Ground Trampolines addresses the concerns of safety & aesthetics and solves other issues while providing an excellent source of safe entertainment and exercise, something parents are eagerly searching for. As it's just at the level of Ground, it eliminates the need of having any safety enclosure and more tempting to be used.
In-Ground Trampolines can be of any standard shapes & size i.e. Round, Rectanhular, Square, Ontagonal etc.
The disadvantages are immovability and high setup costs and complications associated with it.