Review on 📏 DCT120 1" Perfect Diameter Circumference Tape by Greg Baker

This steel tape has metric and inch scales on the front. The back has metric and inch scales separated by pi. Place it on a flat surface and you can read inches and centimeters instantly. By wrapping it around a tree, one can read the back scale to get the diameter, which is the circumference divided by pi. Scales do not start at the end of the tape. Instead, they start a few inches from the end. I think this makes it easier to estimate the diameter under the crust, although it depends on the thickness of the crust. There is a large loop at the end that you can use to temporarily drive a nail into the wood to hold the end while you measure. The ribbon doesn't have an outside wrap but has a smooth spring that pulls it back when it's done.