SMALLTONGUE AB EPOXY S ULPT CLAY, TWO PART MODELING COMPOUND (A & B) TWO POUND, EPOXY SCULPTURE MODELING PASTE CLAY, FOR MODELING, REPAIR, FILL UP RETROFIT AND SCULPTURE, NATURAL COLORS. This is a two sixteen ounce tub container set marked A and B. You mix exact equal amounts of each A & B until well mixed and smooth. You have a couple hours to Sculpt so it is a good idea to only mix up small pieces at a time. Though you should expect to wait a full 24 hours for your project to completely set up. This EPOXY Clay is an excellent medium to work with! Very easy to mix and also to form and Sculpt. Clean up is a breeze. You can sand and paint your project if desired when it is completely dry. It is also great to repair many items.