O-67 Snow White Orthodontic Stone, 25 lbs, White, 1/PkAbout this product Delivers desired whiteness Provides consistent results Improves material strength Ensures economical workflow O 67 Snow White facilitates the preparation of orthodontic casts with outstanding whiteness, highly accurate replication, and excellent durability. Its formulation uses Type III gypsum to create a thixotropic mixture that exhibits a soft, flowable consistency during mixing and immediately forms into a robust cast after being