I can make this Shaker recommend anyone who shakes used whatsoever. Because that is quick and easy to prepare a shake without clumps!
Practically also take away, just before pour the powder into the dry shaker and then add water when you need it.
The nice thing is that it's very light, very well located on shaking in your hand and you can drink directly out of it. He is absolutely tight, nothing runs out. Highly recommended!