Professional Rolling Knife Sharpener: This is a newly upgraded horl knife sharpener, use the rolling knife sharpener to keep your cuts looking new for longer. Just push the wheel slightly to manage the sharpness of your knife.15°& 20° Sharpening Angle: The kitchen knife sharpener always maintains a constant grinding angle, which is a key factor in knife sharpening. The hob sharpener base has two sharpening angles, 20 degrees is suitable for most household kitchen knives, and 15 degrees is suitable for higher sharpness requirementsPremium Materials: rolling knife sharpeners are equipped with #400 diamond and #1000 diamond and #3000 ceramic discs. Industrial diamond is the strongest and most effective abrasive. Use a fine diamond abrasive to remove the first layer of the blade, then polish it with a ceramic disc, and you have a sharp knife.Easy to Use: The rolling knife sharpener kit only requires a magnetic base to hold the blade, then gently roll it back and forth to achieve a sharp blade.A Great Present Item: Our rrolling knife sharpener in an exquisite Present box packaging, making it the perfect Present for family and friends, as well as an excellent Present for any holiday or occasion.