The Upgrade 4 Tier Collapsible Cooling Rack is an efficient and durable solution for food storage. This versatile rack has an X-shaped structure made of stainless steel, which provides excellent heat conductivity and structural stability. Its multiple tiers ensure ample space for storing various food items, including baking sheets. The mesh bottom is designed with a leak-proof feature, making it an ideal choice for use in the oven, allowing you to keep food warm and maintain its freshness. Dishwasher-safe for quick and easy cleaning, this rack ensures a hygienic food handling environment. Its collapsible design makes it easy to store, transport, and set up, making it a convenient addition to any kitchen.