Perfect Cast 4lb Cast & Paint Casting Material Perfect Cast Casting Material is a non-toxic blend specially formulated to create the most accurately detailed and high quality casts from your molds Easy to mix and use, Perfect Cast quickly hardens to perfection in 30-45 minutes Your finished cast will be 5 times stronger than ordinary plaster casts for durability and longevity Beginners and experts alike trust their craft projects to Perfect Plaster Casting Material ensuring the best results every time Includes 4lbs of Perfect Plaster Casting Mix; non toxic and proudly made in the USA