1.    Mainly made of plastic,aluminum and steel

2.    ABS top board,easy to clean

3.    Four columns

4.    C means:aluminum columns;D means:plastic-steel columns

5.    Raised-edge design

6.    Guard rail

7.    1 middle drawer

8.    Needle disposal holds

9.    Aluminum column

10. Dust backets

11. Luxurious noiseless casters

Storage shelf is optional