It is light but strong-. It does not damage or fade easily. It does not harm hands-. Simple to use and has clear calibration. Wear a ruler to quickly find out your size-. size provides long life- and does not rust. small and convenient. US size measuring tool can also measure jewelry or other small objects. Suitable for measuring engagement rings, wedding rings, proposal rings, birthday rings, couple rings,, Manufacturer: Oxxggkao