Upgraded RUIXIN Metal Fixed-angle Sharpener RX-008: The upgraded version RX-008 Metal Fix-angle Edge Sharpener is more simple in structure, easier to install and use. Most of the material of this sharpener stand is stainless steel, highly durable & long lasting. 360° Rotation Flip Design: The innovative new flip design allows to flip over to sharpen other side while retaining the same exact angle and edge, restore knife blades quickly and safely. Equipped with 4 Premium Quality Waterstones: This Edge Sharpener Pro RX-008 Knife Sharpening Kit comes with high quality whetstone (#1500, #600, #320, #120), a simple instruction manual & retail box. Many sharpening stones and belt with size of about 150*20*5mm fit for this professional sharpener kit. Multipurpose Use (Ideal for Birthday Christmas Gift): The knife sharpener stone can use WATER for sharpening, doesn't need expensive sharpening/honing oils. This global whetstone sharpener can sharp many blades out there, like kitchen knives, Hunting Knife Sharpener, Pocket Knife Sharpener, Scissor Sharpener, Chisel sharpener, Blade sharpener, Razor etc SAFETY : We understand the importance of safety when dealing with sharpening tools, your purchase constructed with a safety design--the handle is on the above of the knife blade, it will not hurt your hand when you push back and forth the stone to sharp your knife.