Dimensions: 9.5" x 4" x 4.25". Non-slip base. Three stage sharpening system. Black housing. 100% diamond abrasives guaranteed to never detemper. Orbiting diamonds hone edge to razor sharpness, then micro diamonds hone and polish to create the unique Trizor-Plus edge. Stage 3 offers a unique flexible stropping wheel. Safe for standard edge and serrated blades. Precision angle guides. Boxed.