| 摘要 |
A device for measuring the size of a finger to determine the size of the ring that will fit the same. A disc is journaled in a casing formed of two parts. The disc carries a chain that is anchored on the exterior of the casing and on the disc within the casing so that the chain when pulled out of the casing is in the form of a loop through which a finger to be measured can be inserted. An arm carried on the disc has a pointed end exteriorly of the casing so that the size ring that will fit the finger is readily determined. When the chain links are not used for measuring they will readily retract into the casing by turning the disc.
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