Dimensions: 8" x 4.5" x 4.25". Non-slip base. 2 stage sharpener with 100% diamond abrasives. Ideal for all types of knives, including hunting, fishing, pocket, household, and kitchen knives. Advanced flexible springs hold knives securely against guides for accurate control of sharpening angles. Micron size diamond abrasives hone both fine edge and serrated blades. Black plastic housing. Boxed.