| 摘要 |
Two cylinders with two holes at the ends, gripping in each other. Two key rings are installed in these holes. The outer cylinder key ring moves through a split in the inner cylinder. The upper side of outer cylinder is used to attach a penholder to it. This key holder gives an excellent option to carry the keys without inconvenience inside the pocket. It is aligned with foot axis. It can be easily removed from the pocket and be used by moving cylinders together with easy access to whole keys. They can easily be separated from each other and replaced in the pocket.
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