Sculpey Polymer Clay Glow in the Dark, soft and ready to use right from the package. Plus, the product stays soft until baked. Work on projects for days without worrying about dry-out. Bakes in the oven in minutes. This very versatile clay can be sculpted, rolled, cut, painted and extruded through the Sculpey clay extruder to make just about anything. Great fun for everyone! 2 oz. bars.