This 5" X 3.5" X 5" wood and soda vapor fired cup with terra sig, glaze, and slipped surfaces as well as a built in straw holds 12 oz of a beverage of your choice to sip. Why a clay straw? Why NOT?? Online shopping is tricky since you can't try something on to see if it fits! I want to be clear with my supporters that I don't concentrate on the functional aspect of the pieces. None of the cups are intended as an ergonomic fit and I sacrifice the function for the fiction. Like an ancient broken or damaged relic, I encourage the viewer to explore and question the potential function of each piece.