There was not particularly inconvenience regarding use. However, because we wiped off with a petroleum-based detergent, the scale disappeared. This time I used water to measure the volume, so it did not matter, but if you use kerosene or gasoline it seems better to be warned.
When I got to the site, I bought a 50 ml thing so that it can be analyzed simply. I chose focusing on the point that it is made of resin which does not require precaution for carrying, without expecting accuracy from the fact that memory is originally 0.2 ml increments, that it is made of resin, etc. When used actually, analysis with some degree of accuracy (several% error) is possible, and it was possible to use it more than I thought. Another person wrote, but this product is unsuitable for analysis that requires precision, and I think that it is nonsense to seek accuracy on this product. After all, those who care about accuracy think that they should buy and use the appropriate ones.
The liquid volume was 5% (measured with an electronic balance of 0.01 g in 0.25 ml versus 5 ml) against the actual scale. It was about 1% for what we purchased before 50 ml. Although it may be unavoidable from the price, I feel that there is a little error. Actually it can be used because it corrects with measured values.