Hadar's Clay™ is rose bronze metal clay in the form of powder. The powder is already mixed with a binder and all you have to do is add water. The advantages over pre-mixed clay are that you won't have to worry about shelf life, and that you can easily bring the clay to the desired consistency. Since it contains no preservatives the clay is very forgiving, soft, pliable, and sticks well to itself. It mixes quickly, with no mess.For Hadar's instructions on use of her clay click here