Sculpey Premo is perfect for the more experienced clay or artist! Premo is soft enough to blend easily but firm enough to hold fine detail and for specialized techniques. This pack features metallic and glitter clays to give your projects extra sparkle and shine! Premo is flexible, very strong and durable, making it the perfect choice for advanced techniques like caning, mokume gane and mica shift. Stays soft until baked - Does not air dry and remains soft until it is baked in your home oven. Great for a variety of projects such as: jewelry, DIY home décor, mixed media and more! This set includes the colors: Twinkle Twinkle, Galaxy Glitter, Peacock Pearl, Bright Green Pearl, Gold, 18K Gold, Yellow Gold Glitter, White Gold Glitter, Silver, Opal, Pearl, Frost White Glitter. Details: Includes assorted colors12 oz. (340 g) net weight 1 oz. / 28 g of piece size6 packs (12 pieces per pack, 72 total pieces)NontoxicDoes not air dry Instructions: Bake at 275°F (130°C) 15 minutes per 1/4" (6 mm) thickness. Do not exceed the temperature or recommended baking time.