The GoTubb's ingenious design opens and closes with just one hand. Great for pills, knick-knacks, snacks, vitamins, change, or just about anything. Food-safe (FDA) and 100% BPA-free, PC-free, and phthalate-free. The GoTubb's design allows you to open and close it with only one hand. Just squeeze the sides and the lid is released. To close, simply press back on. For everything that you can't squeeze out of a GoToob, there's GoTubb. GoTubbs work great with pills, knick-knacks, snacks, vitamins, change, bits-n-piece, you name it. A recessed, textured labeling area resists being rubbed off, and the transparent tops let you see what's inside without opening them. GoTubbs are food-safe (FDA) and completely recyclable (#5 plastic). They're 100% BPA-free, PC-free, and phthalate-free. Specifications Capacities: Small - .50 oz. (15ml) Diameters: Small - 1.2"" (3cm) Fluids? GoTubbs are water-resistant, not water-proof. They are not designed for use with fluids (that's what GoToobs are for!).