1. Materials: Stainless Steel, Chrome-Plated, Zinc plated.
2. Shelf width: 14", 18", 21", 24", 30"
3. Shelf length: 14", 24", 30", 36", 42", 48", 60", 72". 
4. Post : 18", 24", 25", 30", 34", 42", 48", 54", 59", 63", 67", 71", 74", 86".
5. Castor is available.  Available 5" non-esd castoer or 4" ESD swivel castor (2 with brake).