Most miniatures are hand sculpted using two-component epoxy putties in the same size as the final figure. The components of the putty are mixed together to create a sculpting compound that hardens over 48 hours. Some common brands include Polymerics Kneadatite blue\yellow (also known as "green stuff" and "Duro" in Europe), Milliput, A&B, Magic sculpt, and Kraftmark's ProCreate.