Vratar 5 I am a painter of fantasy miniatures, and I bought this as an easy way to shake my paint bottles. While it is a little pricy, I am very, very happy with my purchase.It does exactly what it says it does - push a bottle on the blue rubber top, and the motor engages, thoroughly mixing your paints. I find that 10 seconds is enough most of the time, but if you haven't used your paints for several months, you will probably need at least 30 seconds. Either way, it saves your arm a lot of work so you can be more steady while painting.If you have the means, I highly recommend this mixer.