SAFE PLASTIC COIN CALIPER
Great way to get your kids started!
Plastic Coin Caliper for accurately measuring diameter of coins and other medals as well as thickneness.
Determine measurements in either millimeters or inches. These tools can measure inside dimensions, outside dimensions and depths up to 6" or 150mm.
Scale range: 0-6" in 1/16" increments and 0-150 mm in 0.05 mm increments.
Overall Size: 8-1/4" x 2-3/4"