This is a 10kg portion of slab-shaped raw clay that has been processed in a pug mill. 20kg portions are also available. This product is a brand of clay called Shino clay, but it's not overly "rough" and is easy to shape. I've made slightly more than 10kg, but the weight may be less than 10kg if moisture evaporates and it hardens. Wrap the clay directly in a wet towel, seal it in plastic, and once it softens, weigh it before use. The color may appear slightly different depending on the lighting. I may use the same images for multiple listings, so the exact same item may not be delivered.