1. The Mobile Art Drying Rack has 26/38/50 shelves and is ideal for drying large quantities of artwork on paper, canvases, cardboard, and other flat painting sheets. It's space-saving and efficient. 2. Made of durable steel construction, this art rack can withstand daily and heavy-duty use in busy art rooms. Its strong welded metal structure extends its service life. 3. The recommended storage paper size for this rack is standard A3 paper, and each layer of wire shelves measures 16.5 x 12.2 inches. The cross sections allow for easy placement of small to large pictures. 4. The art rack has 360° moving wheel lockable universal pulleys, making it easy to move around during use. It has 4 caster wheels and a brake to keep it still. 5. This art drying display rack is suitable for kindergarten, school classroom, home, or studio use. It can hold pictures, watercolor paintings, posters, oil paintings, and more, making it very convenient.