Bungees instead of metal springs, more soft and sensitive bouncing. (Much lower spring rate than metal springs, so the extension is faster .)Expanding with silence, very low noise, almost no.

Patented elastic fixation structure, wearing resistance. Preferred Bungee rubber quality and outer warping strings,which can with stand 200,000 fatigue test.

Safer than metal springs. Sometimes metal springs broke and burst out, it may hurt the user or people around the trampoline. Soft bungee cords never has such issue.

Upper net poles are flexible fiberglass poles, nets are fixed with tension, no loose. Fiber poles are tested with enough strength to pass allsafety test

Unlike other trampolines that use top PVC+ bottom PE for their pad, our engineers significant design improvements to our trampoline, including the use of PVC+Polypropylene on the pad to prevent abrasion and longer lasting, a double layer of PVC mesh fabric on the bottom of the safety net for complete protection without gaps