The Watson Tubes Injector in Blue is a practical tool designed to simplify the process of filling your own cigarette tubes. Each box contains 20 injectors, and with 200 boxes per mastercase, you'll have an ample supply for your smoking needs. The injector is specifically designed for efficiency and ease of use, allowing you to effortlessly fill your tubes and enjoy your hand-rolled cigarettes. The vibrant blue color adds a touch of style to your smoking accessories. With the Watson Tubes Injector, you can take control of your smoking experience and create customized cigarettes that suit your preferences.