red Knife Sharpener 3 Stages Professional Kitchen Sharpening Stone - Tungsten AZ17710 Knife Sharpener 3 Stages Professional Kitchen Sharpening Stone - Tungsten. The Smart Sharp Knife Sharpener - Perfectly Sharpened Knives Every Time.Bring Your Blunt Knives Back to Their Best The Smart Sharp Makes Sharpening a Breeze. This Ingenious 3 Stages Pull-through Knife Sharpener Will Restore Your Dull Old Kitchen Knives Back to Their Former 'just-bought' Sharpness in No Time. Features: Stylish And safety design, easy To clean and storage.The non-skid rubber feet ensures your Steadiness when sharpening 3 stages of sharpening ( Fine, Ceramic and Coarse ), Ensure theperfect? sharpening result Specifications: Material: ABS + Stainless Steel Slot 3 stage slot Material: Ceramic+Tungsten Steel+ Diamond How to Use: 1st Step: "CERAMIC" Stage (preparation): For Repairing Damaged Blades and Straightening Blades Before Sharpening.2nd Step: "COARSE" Stage (sharpen): Sharpens the Blade and Restores the Cutting Edge to a "V" Shape. 3rd? Step:"FINE" stage (fine-tune): Polishes the Blade and Equalizes Any Surface Irregularities That May Have Been Caused. Package Includes: 1PC Sharpener.