We use different kinds of utensils for different purposes. Knives are generally used to cut a big portion into smaller pieces. Case knives are the kind of knives that were originally designed to be used at the dining table. In the past, hotels or inns do not serve utensils but guests can buy them and they usually come in a case. A knife goes with either a spoon or a fork.

Case knives are also known as pocket knives. These consist of one or more knives that when folded inside the handle, can still fit in the pocket. Their blades can have varying lengths which range from ½ to 12 inches. They are very portable yet very functional and highly versatile. These can be used as self defense, to open a letter or cut an apple.