Works well so far my one point of feedback and message for people buying this particular size(100ml) You should be aware that your disposable cups are going to start at the 90ml graduation on a 160ml hard cup.
The disposable cups themselves simply have one line at 100ml. That being said you can still use the hard cup for measuring starting at 90 with marks every ten Ml labeled amounts every 20 however this means at 120 you will be at 30ml etc..
Allowing for 10ml measuring up until 70ml
Had I known this I may have bought the 200Ml size disposable cup set instead which i assume lines up exactly with the hard cup scale for ease of use.
It is still entirely usable and serves it's purpose however I personally had a more difficult time viusalizing and keeping track of my paint mixtures and ended up using other external measuring tools if there is more than one paint plus reducer involved. This may be more that I just need more time to get used to it to feel more confident using it as
For many other people I am sure this was not a problem. The disposable cup set works well as intended.
I think there is possible room for future improvement in either switching to a hard cup where the disposable cup lands at an even number for example a 200ml hard cup where the 100ml size ends up landing half way on a nice even number I feel a change like this would make it much easier to visualize accurate measurements and ratios.
Alternatively if switching to a hard cup that has it land on a nice even number for the in-between sizes adding some additional measurement graduations on the disposable cup every 25ml so you can more easily measure a 1:4 or 2:2 ratio etc, Could also be a way to improve it.
Lastly I think that for the 100 ml size and any other "in-between " size disposable cups sets. That actually picturing the disposable cup how it sits in the hard cup on the website would allow for better transparency and a more informed purchasing decisions.
All this being said it is a great product at a very competitive price the only reason I gave it a 4 and did not give it a 5 are the reasons listed above which may not even matter for you.