Wood The external dimensions of the drawer are 21"D x 29"W x 3"H, and the internal dimensions are 19.6"D x 27.8"W x 2.1"H. The overall size of the drawer after installing slides is 22"D x 30"W x 3"H. Please carefully measure the cabinet's dimensions before purchasing to avoid installation problems Easy Installation: The MOBIREX pull out shelf is designed for easy assembly with detailed instructions. With only 6 simple steps, you can have it installed in your kitchen cabinet within 10 minutes, effortlessly upgrading your storage space Smooth & Silent Operation: Equipped with stainless nickel-plated rails, the pull out shelf ensures smooth and silent operation, allowing for full extension. The high-quality materials used are formaldehyde-free, prioritizing your health and well-being Premium Materials: Featuring a core made of poplar wood and a birch wood veneer, along with a UV-coated surface, this pull out shelf is not only durable but also adds an elegant touch to your kitchen decor Versatile Usage: Make the most of your space and say goodbye to cluttered cabinets. This pull out shelf can be used in corners, kitchens, bedrooms, or living rooms.