Mixing your protien just got easier, easier than breathing, it's so easy to mix with this bottle that you would hire it as a dj at your wedding instead of Pete tong I mean dam this bottle could mix cerment it's so intense, more intense than game of thrones season 3 ending. But yeah over all it does it's job well, and I would recommend it.
Goes Well With:
Brimstone

It is practical as it is a good size for portability. However, when it is shaken the liquid from inside the shaker drips out causing a mess.

Shaker leaks from lid sides even though screwed on right. Seems to be fault with the lid. Protrudes when lid is screwed on. Waste of money

I'll start off by saying that this little thing is really nifty. It mixes the powder incredibly well, and is just the perfect size. The measurement gauge on the side is really handy, too. However, I'm having real problems with the flip cap staying shut on mine. I have to really whack it down before it wants to close, and occasionally it will pop back open, which is quite annoying - I'm a beginner to lifting, so perhaps when I get a bit stronger I won't struggle as much :P But I think maybe the flip cap being a liiiiiitle looser would make me give this 5*.

The mini shaker is ideal to make the right amount of shake. Being small I am able to pop it in my handbag making it convient to have a shake on the go.

Perfect size for popping in my bag. Mixes well with the little metal ball.

These are adorable and a great size to make milkshakes and smoothies for my 10 year old. She loves them.

Very handy, easy to carry around and I love the new colour 

Such an amazing bottle, I use it before and after the gym and it is so useful to carry around, absolutely love it.

Perfect for mixing up a pre-workout shake, only complaint would be the cap on mine is a very stiff, to the point where I had trouble opening it when it first arrived (although it has loosened up a bit over time, but is still considerably stiffer than my large shaker).