From The Manufacturer
Accessories, Adjustable Shelves, 9lbs. (ITEM WEIGHT ONLY), Caster Conversion Kit for Adjustable Shelving (set of 4), MUST BE FACTORY INSTALLED.

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| Manufacturer | Channel |
| Model Number | /ADJ4 |
| Weight | 9 lbs |
| Width | 0″ |
| Depth | 0″ |
| Height | 6″ |
| Quantity | 4 |