Features 1、【Easy Knife Sharpening】Rolling knife sharpener kit comes with a magnetic angle support and a double side magnetic sharpening stone stand. Easy and comfortable to polish and keep your cutting in a new state for a longer duration.  2、【4 Repalcable Magnetic Discs】Knife sharpening kit are equipped with #400 diamond, #1000 diamond, #1000 whetstone and #3000 ceramic discs. Sturdy enough and effective abrasive, can be used for severelydull blades, moderate repairs and sharpening, fine grinding and polishing. Easy to replace and maintain with magnetic back design. 3、【4 Angle Magnetic Support】The kitchen knife sharpener with 4 sides angle supports: 15° for most boning knives, fillet knives, slicing knives, 18° for most Santoku knives, kitchen knives(Asian), 20° for most kitchen knives(Euro), carving knives, paring knives, chopping knives, tactical Knives, 25° for most hunting knives cleaver. Meet your different needs (except for serrations and scissors). 4、【Premium Material】Knife sharpener tool made of aluminum alloy body and anti-slip base. Durable, corrosion-resistant and quiet to use. Ideal for home use and gift ideas for friends. 5、【Easy to Care and Storage】Just need to clean your sharpener with a damp cloth or mild brush(Do not rinse with water). Compact size do not take up space, easy to storage and carry for outside. Specifications Specifications: Color: Black / Silver / Wood (optional) Main Material: Aluminum alloy Disc type: 1*400# Diamond, 1*1000# Diamond, 1*3000# Ceramic, 1*1000# Whetstone Angle support size: 100*100*37mm/3.9*3.9*1.5in Sharpener size: 135*66mm/5.3*2.6in Product weight: 721g/25.4oz Package List Packing List: 1 * Knife sharpener 1 * Angle support 4 * Disc