Review on Precision 10x10x29mm Picture Measurement Tools with Hanging Capability by Ronnie Toups

All six arrived in good condition. two of them had some big air bubbles but not as big as in the photo. A few days later I took it out of the box and looked at it again. Almost all had very large air bubbles that almost completely affected the accuracy of the measurement. I didn't see any leaks anywhere, so somehow air got in, but the liquid didn't leak out.