CWOVRS Knife Sharpening System with Precision Controlled-Angle – The original and legendary Controlled-Angle System is the ultimate in knife sharpening technology. Designed to give your blade a professional, razor-sharp edge every time. Precision engineered for multi-angle use, it holds your desired angle while you sharpen. Excellent for beginners and advanced users alike. Up to 4 Sharpening Angles to Choose – The sharpener allows continuous angle adjustments from 17, 20, 25 to 30 degrees. It enables the user to change the sharpening angle simultaneously on both sides of the knife, making the sharpening process more efficient and convenient. 5 Color-Coded Whetstones & Finger-Grooved Safety Holder – CWOVRS kitchen sharpening system comes with 5 grit high-quality whetstones (#70, #120, #280, #600, and #1000). The coarse to ultra-fine hones provide the proper grit for complete edge care and maintenance. No oil is needed – sharpen dry or with water. (Note: Honing oil not included.) Easy to Store and Carry – Simple to use and compact enough to store in a kitchen drawer or closet. The included deluxe carrying case stores the sharpener and stones, making it ready to take anywhere or mount on a kitchen counter. This knife sharpener kit makes a great gift for fathers, men, boyfriends, and coworkers for occasions such as birthdays, Father’s Day, anniversaries, Thanksgiving, Christmas, or other special events. Multipurpose Use – This whetstone knife sharpener kit can sharpen any blade, including kitchen knives, chef knives, steak knives, santoku knives, paring knives, sushi knives, cleavers, Japanese knives, butcher knives, BBQ knives, hunting knives, pocket knives, scissors, chisels, blades, and straight razors.