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