Description:【Material】:The Professional Knife Sharpening Is Crafted From Diamond Stone Material , It’S Strong,Sturdy And Designed To Last A Lifetime.【Two Fixed Angles】:Knife Sharpener Kits With 15 & 20 Degree Sharpening【Easy To Use】Roller Knife Sharpening Is Easy To Use, Choose A Suitable Angle (15 Degrees Or 20 Degrees), Then, Place The Knife On The Sharpener And Use Appropriate Force To Roll The Sharpener. 【Design】: Household Sharpening Is Practical And Efficient Knife Sharpening Tool For Any Kitchen Where You Need To Keep Your Knives Sharp【Occasion Application】:Rolling Knife Sharpening System For Kitchen,Chef Knives. Size Chart:20° And 15° Sharpening Angles And Removable Sharpening Disc For Large And Small KnivesPackage Includes:1 Set Rolling Knife SharpenerNote:Please Allow Slightly Errors Due To Manual Measurement And Different Monitors.