This expandable and height-adjustable microwave rack is built from 99% carbon steel with a small plastic component for functional support. The shelf extends from 15.7 in. to 23.6 in., allowing it to fit in various kitchen spaces while accommodating different appliance sizes. Multiple pre-drilled holes at varying levels let users adjust the height during installation to suit their needs. It requires no drilling and comes with all necessary tools and clear instructions, making setup quick and straightforward on any flat surface. The smooth finish makes cleaning simple with just a wipe down, and the 4 adjustable foot pads provide stability on slightly uneven floors, offering up to 10mm of height adjustment. Designed for durability, the rack features thick carbon steel construction coated with an eco-friendly black paint that resists heat and rust. It supports up to 160 lbs., making it suitable for microwaves, toasters, cookware, spices, bottles, canned goods, and other heavy kitchen items. In addition to kitchen use, its design works well in areas like garages, wardrobes, or bathrooms. 3 bonus hooks are included for hanging oven mitts, utensils, or towels. Its versatile structure and robust build make it a practical storage solution across multiple rooms.