Combines the strength and durability of the Trizor edge with the flawless, ultra-sharp 15ºXV technology. Time Required to Sharpen: Approximately 1 minute for first time sharpening. Resharpening is approximately 10 secondsIdeal for converting traditional 20 degree factory edges of household knives into high performance Trizor XV edgesAdvanced, patented flexible spring guides for accurate control of the sharpening angle, 3-Stage EdgeSelect system for optimum versatility in providing the perfect edge for each cutting taskdiamonds and advanced stropping stage. For sharpening both straight edge and serrated bladesEasily apply the astonishingly sharp Trizor XV Edge for ultimate sharpness and effortless cutting (15 degree class)Sharpener for American-, European-, and Asian-style knives, including straightedge and serratedConverts 20-degree factory edge into high-performance Trizor 15-degree edgeThree stages include diamond abrasives and flexible, abrasive stropping disksFlexible spring guides automatically adjust for the proper angle; simple on/off switchMeasures approximately 6-1/5 by 12 by 6-2/5 inches; 3-year limited warranty