Durable, heavy-duty containers for a variety of uses. Double-ribbed base increases stability and dragging capacity. Certified to NSF Standard #2 (gray, white and yellow) and Standard #21(all colors). Reinforced rims add strength and durability. Strong, snap-on lids are available for secure, stable stacking. Gray, White and Yellow are USDA Meat & Poultry Equipment Group Listed and assist in complying with HACCP guidelines. All plastic construction will not rust, chip or peel; resists dents. Built-in handles allow easy, non-slip lifting and anti-jam nesting.