Stevens Industries 4-Door Wall Unit and 4-Door/2-Drawer Base Unit Cabinet Suite is made of scratch-resistant thermofused melamine, so it’s sure to withstand heavy use in your classroom or science lab. Five-knuckle hinges let you open the doors up to 270 degrees, and spring-loaded door catches hold them shut. The double-pin shelf supports and locking tabs keep shelves firmly in place under heavy loads. Matte nickel five-inch wire door pulls are ADA compatible. Installation is required. Due to varying local building codes, mounting hardware is not included.