Main frame: Solid wood 2.8 thick oak
Leather: Three-layer water-washed wear-resistant ultra-fine leather
Springs: 6 high-grade imported piano steel springs
Accessories: High pedal, soft package pedal, anti-slip pedal, stainless steel accessories
Sponge: High-density sponge
Track: Aluminum alloy track
Wheels: High-elastic silent wheels
Anti-slip handle sleeve