Small Terrarium Background KitBuild a custom bioactive terrarium background for a 10-gallon vertical or horizontal enclosure, or a 12 x 12 x 18 inch terrarium. This kit gives you the core materials to shape cork backdrops, planter pockets, and other 3D habitat features using The Bio Dude background method.What's included 1 black 12-ounce expanding insulating foam can 1 tube of clear aquarium-safe silicone, 10.2 ounces 2 black 2-inch net pots 2 cork bark flats, 4 to 6 inches 1 bag of The Bio Dude Background Blend, 6 quarts Build notesThe Background Blend creates a textured surface that helps hold moisture for plant roots. Materials can be used to create a one-of-a-kind planted backdrop, and your finished design may leave some material unused.Shipping note: Because this kit contains silicone and expanding foam, it ships by ground or Home Delivery only. Express and air shipping are not available. The sealant brand may vary.