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Double rings made by solid brass wire are manufactured by a hardware supplier founded in the early 1900s. The basic is 12 pieces, but if would like to order a few pieces, please ask.
※Note that brass is a soft metal and may spread when a thick key is inserted.
| Weight | 5 g |
|---|---|
| Dimensions | 3 × 0.3 cm |
| Package | Without |
| Inner diameter | 2.5cm |
