1.    Mainly made of plastic,aluminum and steel

2.    ABS top board,easy to clean

3.    Two columns

4.    A means:aluminum columns,B menas:plastic-steel columns

5.    Raised-edge design

6.    Plastic-steel column

7.    3 middle drawers

8.    1 big drawer

9.     Guard rail

10. Centralized lock

11. Label cards for drawers

12. Dust basket

13. Luxurious noiseless casters(two with brakes)