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Nowadays the general restaurant and home kitchen usually have two spoons, one is the normal spoon, the other is a colander. Firstly changing spoons is trouble. Secondly it is a waste of material. lastly it occupies space. So, we designed a dual-purpose spoon, it is made up of two pieces of same impartial part ,with a button to control the rotation of the Iron Mask. It has two states. When you want soup, press the button, Impartial Rotated a closed semicircular, it becomes spoon, impermeable to water. When you do not want soup, press the button again, Impartial rotated into a semicircular not closed, Become a colander for holding things.