Features: 【 3-stage sharpening system 】Don’for t waste for time with the whetstone kit! Just 3 swipes with knife sharpener make old knives cut like brand new! The 1st diamond sharpening rod repairs and straightens damaged blades before the 2nd slot sharpens to restore its V-shape. Finally, the 3rd slot for a clean polish. Pls note: Not suitable for ceramic knives, serrated knives, scissors. 【 Golden sharpening angle 】 We've went through the experiment many times and found out the 36 degree is the Golden Angle for sharpening, which can keep the best balance between sharpness and sharpness retention ability. 【 Safe & effortless use】 Powerful suction base provide superior stability and sharpening power, without risk of slipping, sliding or jabbing. Never worry about cutting hand while holding the sharpener. 【 Easy to storage 】Unlike other bulky knife sharpeners, knife sharpening kit fits conveniently in a kitchen drawer or can get tucked away nicely anywhere on your kitchen countertop. Specifications: Material: Diamond Emery+Tungsten Steel+ABS+PVC Weight: 150g Size: 7.5x7.5x6.2cm/2.95x2.95x2.44inch Package Includes: 1x Knife Sharpener note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.