The Chef's Choice Professional 100 Diamond Hone Knife Sharpener is a high-quality electric sharpener designed for professional use. Made with durable plastic material and featuring a compressor making method, this unit is capable of efficiently sharpening knives with its tested diamond hone technology. With a sleek white color and manual features, this sharpener is a convenient and useful addition to any kitchen or dining area. Made in the United States, this Chef's Choice sharpener is a reliable tool for maintaining the sharpness of your kitchen knives.