The tub is nice for protein powder storage. However, I hope that it can be designed accordingly like 1 kg, 2.5 kg, 5kg and so on.

I bought the largest size of this container and it fits my protein powders perfectly. I can fit 2.5kg of protein meal replacement powder in with lots of extra space, and I can fit 5kg of impact diet whey with just enough room to get the scoop in and out. They are reasonably good quality given they’re so low in price, and they make accessing powders much easier than trying to reseal the big bags every time. Would definitely recommend! 

great tub for protein to keep in work van and keep in cupboards not too bulky 

Does what a storage tub needs to do and the variety of sizes are perfect. 

High quality tub, was actually bigger than what I expected.. definitely recommend