Our rack mount drawers easily mount into any standard 19″ rack frame or enclosure. Drawers are equipped with key locks and a spring loaded latch to insure the drawer stays closed when unlocked. They are made of all steel or aluminum with a black powder coated finish for durability. An excellent storage solution for all those gadgets, tools, and miscellaneous supplies. Product Features: Flat black powder coated finish Made of Steel or Aluminum Ball bearing glides Available in 2U, 3U, 4U, and 6U sizes Mounting screws included Key locking