These heavy duty soap molds feature strikingly beautiful designs with meticulous attention to detail which translates to unique soaps with amazing style. These sheet molds each have four cavities, six cavities or the 3-D molds have 2 part/1 cavity and are made from 60-mil polystyrene. Although these molds have been tested to withstand temperatures of up to 180°F without warping, we recommend using an accurate thermometer and keeping pour temperatures for your soap to around 140°F. Keeping temperatures low not only prolongs the life of the mold, it also produces a better quality soap. Mini molds may also be used for candy molds or to make your chocolate covered oreo cookies.