Review on Teenitor Plastic Graduated Cylinders - 500ml & 1000ml by Dave Russell

It may not be professional laboratory material, but it is at I think the price is great. They're plastic, so their readings are likely more affected by temperature changes than glassware, but they're just what I needed for the rain sensor calibration tests I ran. For kitchen science or even use in class I would give them five stars. Two reviews (looks like the same reviewer posted twice under different names?) say they broke within three days. I don't know how they could be broken so easily. They are plastic and strong enough. They definitely won't break if dropped. Maybe if you stepped on them.?