Gbc® Shredmaster 3890d continuous usage micro-shred paper shredder Shredmaster® 3890D Continuous Usage Micro-Shred Paper Shredder, Charcoal Gray This high-security office shredder micro-cuts paper into super-fine chips through a deep, funnel-shaped throat. Provides reliable document disposal for military facilities, government departments, embassies and defense contractors. Features solid one-piece cutting head and a protective shield to help keep fingers away from shredding area. Casters provide easy mobility. Meets Department of Defense and NSA/CSS 02-01 mandatory requirements for the destruction of classified materials.