Due to the price I didn't think this would be suitable for a long period, 2 months later it is still going strong. I fully recommend these for the price.
In summary, it's a very good product & value for money
It's 700ml capacity as opposed to 600ml most make
Leaked once & wet my bag
Make sure your happy with the screw cap
Mixes powder well and good size
Lid a pain to keep screwing on and off
Fine product at a low cost
low cost, good build quality
Good value for money
easy to use, mixes well
Used with a spring mixer produces a lump free drink with little effort.
Provides a smooth drink without a fuss, good value
Best to rinse immediately after use.