| 摘要 |
aicock is a tool for users to lose weight, for beginners, and for users to hide skills from other people by practicing badminton without a help of another person. A pendant type (string breakage prevention) apparatus is installed on a head of a cock, and a male string to be connected to the pendant type apparatus and a ring bearing are detachably attached to each other. A bearing apparatus includes specially processed inner and outer diameter materials for exercising closely enough to the actual match. The aicock is for the users to have more wide-ranging hobby in badminton. [Reference numerals] (AA) Top-Middle-Bottom;(BB) Ceiling;(CC) Line or stick;(DD) Pole |
