Many sculptors desire an extra-firm clay that can be carved to shape, as subtractive rather than additive sculpture. Super Sculpey Firm delivers, achieving a carving medium, which can then be polished, sanded, drilled, further carved and painted with acrylic colors. Super Sculpey Firm also maintains details exceptionally well, and is gray in color so those details show in photographs. Bake at 275 °F (130 °C) for 15 minutes per 1/4 in (6 mm) thicknesses in a 275° oven Fantastic for projects where you want to create minuscule and realistic features 1 lb. block