This is an agricultural tool used to gather dry grass, leaves, and grain, as well as to level the ground or heap soil. Rakes are classified by the material used, into bamboo rakes, ash tree rakes, bush clover rakes, etc. To make a rake, prongs are first made by bending thick wire, or cutting wood into pieces, then firing them to bend the ends into hook-shaped prongs, tying them with straw, and allowing them to harden to maintain the shape. Then, the prongs are spread in the shape of a fan, and the prongs are connected at the top to a long shaft. The joint should be wrapped with strings to keep it strong. A rake generally had 10 to 12 prongs, but some had more than 20 prongs to be denser. Since the shape was formed by firing wood, rakes were likely to become warped or straightened after contact with rain, and therefore were kept in a shed when not in use. In the present day, mass-produced steel rakes are used.