4 Different Sizes AvailableA set of 4 pcs round hole sludge cutters, 4 different sizes for you. Let you easily get the desired effect in the process of making pottery. Easy To UseEasy to use, sharp metal cutting tube, suitable for you to use. You can easily create the shape you want from moist clay, but because the blade is sharp, please use and keep it properly. Suitable ForIt is convenient for students, art studios or professional sculptors and potters to use. The tip of the knife can also be used for carving, which is easier to manipulate than a small carving needle. As A Gift Or...It can also be given as a gift to friends who make pottery. Maybe this hole opener is not only suitable for clay, other functions are waiting for you to develop it. Comfortable To HoldAnti-slip wooden handle, comfortable to hold and use. Will inspire artists to seek greater challenges and enable them to meet them.