The ball in the shaker is very good, it mixes the protein shake really well and really quickly. The snap down lid however is not good. It does not fasten down easily, often I have to fiddle with it for it to shut properly. And sometimes it pops back open, spilt shake all in my gym bag the other day. I thought mine was faulty, but then when reading some reviews I found similar comments about the lid not fastening down well. I have definitely had better shakers.

sorry I wasn't impressed with the shaker. I found the lid very difficult to close. previous ones have been very good so this one may simply be faulty but I stopped using it after finding smoothie contents all over my gym bag-not good

For its price it is a pretty good shaker. Use it every day for my protein shake and so far I haven't had any issues.

Very well designed, with an ergonomic lid. The skake assisting wire ball is also excellent. Been using it every day

This is a good all round shaker, obviously there are more expensive better ones on the market however for the price and as a freebie it does the job! Although sometimes leaves small clumps 

This shaker is great,  doesn’t leak, I use it for Bcaa or pre work. Reasonably priced.

It is really good shake and high quality product. Highly recommend for people looking bottle shake for their protein powder. 

This shaker does a great job at mixing, I love the size as it helps me with meeting my hydration requirements daily.

Perfect size shaker with metal spiral to mix your protein easily.

The shaker is fantastic, with the blending ball you do not have to shake for very long before having your beverage. Other shakers leave bits from the protein powder, Myprotein shaker blends everything in seconds. Great piece of kit that every gym user should have.