Quality reference:
1). Jumping mat: Made in the USA
2). Foam pad: EPE, closed-cell foam that will not absorb water, mildew or lose shape
3). Pad: PVC (500D, 1000D) fabric
4). Tubes: Galvanized inside and outside
5). Springs: Super high-strength galvanized
6). Harness: The same to the car harness
7). Elastic rope: It is rubber inside and outside