Eowpower 30pcs 50ml Flat Bottom Plastic Graduated Vial Storage Container Test Tubes for Laboratory Lab

I got these for lab use, but this pack comes with 30, so I've had a few extras. I've started storing my soap, mouthwash, etc in them when I travel. The lids seal pretty tight; haven't had any leaking incidents. One complaint I have is that the volume markings are a bit confusing to read -- the number is written next to a line, but that volume is one line up from it. So to find, say, 25 ml, you look for the line right next to 25, then look up one line. It's easy to mis-measure by about 2.5ml if you're not paying close attention and looking out for this. That said, I wouldn't recommend using a tube like this for precise volume measurements anyway, though they seem to be pretty accurate (within 1 ml) if you read it properly.