| 摘要 |
PURPOSE: A ring which keeps chalks capable of preventing the chalks from being lost is provided to facilitate storing and carriage of the chalks by connecting a box for keeping chalks to the ring. CONSTITUTION: A ring which keeps chalks comprises cases(1) for keeping chalks, a connecting bottom portion(2) and rings(3). The connection bottom is attached to the case for keeping chalks, and the ring is attached to the bottom part of the connecting bottom portion. [Reference numerals] (AA) Upper surface; (BB) Front surface |
