6-Shelf Commercial Steel Wire Shelving Rack w/ Wheels - Black. The weight limit per shelf is 220 LBS without wheels. 3" Commercial castor wheels with two that lock for safety. Height adjustable non-rolling/stationary feet included, allows shelving to hold up to 220 lbs. per unit. NSF rated for food safety. Shelves adjust at 1" increments. Heavy duty steel. Commercial grade black wire. No tools required for assembly. Buy this and Save 110$ Off on 6-Shelf Commercial Steel Wire Shelving Rack w/ Wheels for $59.99 with free shipping at Rakuten.com.