Easy manual operation with just a pull. For chopping hard vegetables, onions that wont stop tears, and garlic that is concerned about the smell of your hands. Not only chopping, it can also be mixed, making tartar sauce and baby food. It is easy to pull, so your child will be happy to use it with a recipe using chopper. *Do not use in the dishwasher or dish dryer.(This may cause deformation.May deform depending on terpene and oil found in citrus seeds.