HUDORA Rectangular Trampoline. Almost like the pros: rectangular trampolines are a standard in competitive sports because they offer the same jumping quality across the board. On the 4square trampoline, children and teenagers can experience this bouncy feeling for the first time—catapulted by the performance suspension with 76 double-cone steel springs (64 for the small version) and twelve Rapid Bounds (six for the small version). The high-impact frame with outsourced spring attachments on the central frame tubes ensures ideal force absorption and protects the main poles. The wide feet, the outer net with top ring, and the two-tone edge cover promise safe, GS-certified jumping fun for users weighing up to 120 kg.