Features:--Brand new and high quality--Adopt lectroplated Diamond technology, sturdy and stable--Hive appearance, delicate and practical--Double-Sided design, separately imprint with 1000# and 400#, representing coarse grinding for 400# and fine grinding for 1000#, you can choose which degree you want--Suitable for cutlery at home, especial for kitchen--Ideal for woodworking cutting tool grinding, skate blade,jade,seal cutting tool,glass tile chamfering,some super hard tool in the industrial and mining enterprises ect.Specifications:Product name: Sharpening StoneColor: SilverMaterial: Diamond sandSize: 200 x 70 x 8mm( Length x Width x Height)Type: Dual face 400/1000#Package included:1 x Sharpening Stone / About service / On- Time Delivery Full refund if product isn't received in guaranteed delivery time Longer Protection 15 day more protection after order completion Returns Extra Return any product,only those in perfect condition Guaranteed Quality Guaranteed Quality or Full refund If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problem and provide you with the best customer services.