These toothpaste rollers are the absoulte BEST!!! Work great just slip the bottom of the toothpaste tube in the slot and, start turning. Really gets all of the toothpaste brought up towards the top. Versus squeezing and, leaving all kinds of stuff stuck in the bottom. And, the bonus to these are that you can sit them down on the counter, table or, wherever and, they won't slip. As they have little rubberized strips on the bottom..BONUS!!! The crank on the side is easy to turn.