From the Website
With wire whisk ball for efficient mixing of ingredients
Great for making sauces, milkshakes, nutrition drinks and much more
BPA free
Top rack dishwasher and microwave safe.
Dont know about the sauces or milkshakes but is very good for Nutrition drinks and powder shakes specially with the wire ball.
And most importantly you can choose from 4 different colors ;) depending on how soon you get there.
yay cheap shaker