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 available for secure, stable stacking. * Certified to NSF Std. #2 (gray, white and yellow) and Std. #21. * 2657-88 is California State Fire Marshal (CSFM) approved for fire safety when used with 2655.