AIBI Jumpsport JS230 uses EnduroLast Elastic Cords which are formulated to strectch 2 times the resting length, delivering the smmothest, deepest and most supportive low-impact bounce. 

• Folding Fitness Trampoline with straight legs that fold under for easy storage!
• Easily folds in half and stores--from the closet to work out in under 5 minutes!
• Light weight and portable--take your workout anywhere you want!