1.    Mainly made of plastic,aluminum and steel

2.    ABS top board,easy to clean

3.    Four columns

4.    B means:plastic-steel columns

5.    Raised-edge design

6.    Plastic-steel column

7.    3 middle drawers

8.    Dust basket

9.    SUS304 guard rail

10. Centralized lock

11. Storage box

12. Label cards for drawers

13. 1 big drawer

14. Luxurious noiseless casters(two with brakes)