Review on 🎨 100-Pack of Pint (16oz) Paint Mixing Cups with Calibrated Mixing Ratios - Custom Shop by Barbara Simmons

Measurement lines not accurate at all. I poured 3 ounces of water (measured along the line on the cup). I then weighed the cup and water on my digital scale (with the scale at zero and the cup dry). Then I filled the cup to the 6 ounce mark and weighed again. The weight should double. It's not like this. Not even close. Also, the mix ratio lines don't even line up with the ounce lines. For example, in the attached image, I have circled in blue where "1" corresponds to a "1:1" mix. I then put a blue line under the second "1". Note that the bottom "1" is almost exactly 3 ounces. If you fill in the second "1", you would expect the ounce line on the left to show double 3 ounces to the 6 ounce line. It is not. Note that it says about 5.5 here. These cups have been removed. I'm hoping my resin will set after the freeform cast I just applied.