Non Flammable Self-Closing 2-Door Safety Cabinets for 55 gallon drums have an all welded double wall 18 gauge inside construction, 14 gauge outside construction with 1½" insulating air space. Each unit contains 2" leak-proof sill to contain leaks. Lockable flush mounted handle (gripper pad) with 2 keys included. Adjustable leveling feet for various floor surfaces. Galvanized steel shelves adjust on 2½" centers. Self close doors shut, index, and latch automatically as fusible link melts under fire conditions at 165°. Meets OSHA and NFPA code 30 standards. Powder coated yellow finish.