HIC's Straight Edge Old Fashioned Food Chopper quickly minces and chops onions and softer ingredients. Used by many generations this vintage kitchenware is a great addition to cutlery and chef knives to save time during food preparation. No batteries or electric required. Great for chopping onions fruit vegetables small salads tuna hard boiled eggs and making quick healthy snacks. Easy to use. Simply work the plunger in an up-and-down motion until desired texture is achieved. Sturdy and durable this hand chopper is much easier to use and clean than a food processor. Hand wash in warm soapy water. Glass base is dishwasher safe.