You can compare trampolines by looking at the size, the shape (round or rectangular), and the warranty. You can also choose between a trampoline on legs or a buried trampoline. We have 2 types of buried trampolines in our assortment: in-ground trampolines and ground level trampolines. These trampolines are a permanent part of your garden, while you can easily move a trampoline on legs. Make sure a safety net is included with your trampoline.