Actually, I never write reviews especially like, but here I really did need to know about this great blender on. I use it (like most) for the preparation of protein shakes after workouts and for this he is absolutely ideal. By the steel ball, the powder dissolves in water or milk after a short shaking completely on and the result is a perfect shake. The lid can be unscrewed easily, so you can easily clean the good piece after use with hot water. Extremely practical and easy to use. The only point that some might not like the drinking spout a little hard to open, because you have some really already apply some force and if the part then is still brimming you can also stain slightly when lining up awkwardly. Would that but absolutely no view as a minus point, since the bottle keeps so absolutely tight. Even when flying back and forth in a backpack runs absolutely nothing.