1. Bed frame: White Maple imported from North America

2. Springs: 16 piano wire springs imported from South Korea

3. Wheels: 4 imported silent pulleys with brand-name bearings

4. Tracks: 2 thickened aluminum alloy tracks (3.0mm)

5. Leather: 1.3mm microfiber leather

6. Foam: High-density sports foam/EVA

7. Tower: 3mm 304 stainless steel

8. Accessory set (3-piece box, kickboard, and footrest)）