Features: 
1. It's made of high strength aluminum alloy.
2. The track angle after back rest with three position adjustment, suitable for different floors.
3. Three position lift bar help any size operator move the stair climbing trolley on the stairs.
4. It just need one person to operate.
5. The controller of this trolley is easy and convenient to operate. It can help carry goods safety.
6. Intelligent electromagnetic brake keeps users safe.