A metal oven rack is a common kitchen accessory designed to hold food while cooking or baking in an oven. Typically made of stainless steel or chrome, these racks are designed for durability and heat resistance. They are generally coated to prevent rusting, although the material and finish may vary depending on the manufacturer.

Key Features:

1. Material: Most oven racks are made from stainless steel due to its strength, non-reactivity with food, and resistance to rust. Some might have a chrome plating for an added shine and corrosion resistance.

2. Design: Oven racks typically consist of a grid of horizontal bars that provide ventilation, allowing air to circulate around food for even cooking. This design is also helpful for drips and crumbs to fall away, preventing burning.

3. Adjustable or Fixed: Some ovens come with adjustable racks, allowing the user to change the height based on the dish being cooked. Others are fixed but still serve various purposes, depending on the recipe and oven configuration.

4. Sizes and Shapes: Oven racks come in different sizes to fit various oven models. They are generally rectangular, but some ovens, especially those with unconventional shapes, might have specialized racks.

5. Size: 16/24 Shelf Tray , 5 Feet Height 

6. Versatility: They are used for baking, roasting, and broiling. Some racks are designed for specific tasks, like broiling meat or holding cookies and trays.

7. Cleaning: Many oven racks are dishwasher-safe, though some may require manual scrubbing due to grease or food buildup. They can usually be cleaned using soapy water and a non-abrasive scrubber.

8. Heat Resistance: Oven racks are designed to withstand high temperatures, typically up to 500°F or more, depending on the oven's maximum temperature. This ensures that they do not warp or degrade during cooking.

Functionality:

• Baking and Roasting: The metal racks provide a stable platform for dishes such as cakes, bread, and meats, allowing for even heat distribution.
• Grilling and Broiling: In the case of broiling, the rack allows the heat to directly reach the food, resulting in a crispy exterior while maintaining moisture inside.