Pro-Line InGround trampoline set 223 This rectangular InGround trampoline from Pro-Line is a popular model because of its size, 305 x 225 x 20 cm. This trampoline has a black edge. This solid edge completely covers the frame and springs. The black edge has an extra thick filling and is made of a strong quality PVC. As a result, the safety pad stays neatly on the trampoline with every jump. Avyna gives a lifetime warranty on the frame of the trampoline and on the springs 10 years. In other words, with an Avyna trampoline you have quality in your garden. In addition to the InGround trampolines, which rise 20 cm above the ground, we also have Flatlevels, which are equal to ground level. Or do you prefer a built-up trampoline?