The Chef's Choice Diamond Hone Knife Sharpener is a professional-grade tool designed for sharpening knives with precision and ease. This pull-through sharpener features a non-slip base, making it secure and stable during use. With its electric operation and automatic functionality, this knife sharpener is convenient and efficient for keeping your kitchen knives in top condition. Made of durable plastic in a sleek white colour, this product from the United Kingdom is a must-have for any serious chef looking to maintain the sharpness of their knives. I have said used but in reality I think it has not ever been used.