Review on Silicone Measuring Stir and Pour Cup - 4 Cups Capacity, Flexible & Dishwasher Safe by Norpro by Eric Teofilo

Great mug I bought to clean scrambled eggs and things like that in the microwave. I had to cut about an inch off the top to fit in a small microwave, but I expected that and you can use regular scissors to cut the silicone material. An interesting thing about calibration. In all my 70+ years of experience, a cup has always been 8 oz or 236 ml. This thing is calibrated so that there are exactly four cups per liter, making a 250ml cup. If you look at other Asian products, they seem to be the same. That's about a 10 percent error, at least for American chefs.