Food-grade polyethylene tray, suitable for food contact. Closed and ribbed bottom, closed walls. Temperature resistant from -40 ° to + 80 ° C and up to 120 ° C during washing. Perfect for maintaining the pizza dough. Ideal for storage. They do not absorb odors and are easy to clean. Resistant, perfectly stackable in order to prevent the entry of dust and impurities. Dishwasher safe.