ULTRA SHARP BLADES - The blades are ultra-sharp. It is recommended that you use a brush when cleaning to avoid touching the blade. Also, use a cloth to dry or air dry to extend the life of the product. If you have any questions, you can send an email. We will help you reply within 24 hours. Suitable for most medium-sized fruits and vegetables such as apples, pears, potatoes, tomatoes, etc.