| 摘要 |
The present invention discloses an improved holding device which allows for retaining, storing and transporting cups used in sport stacking. The invention allows a user to quickly and conveniently store and transport a stack of sport stacking cups using only one hand, by employing a unitary stem incorporating retractable tangs that retain the stack of cups. The tangs may be withdrawn via a spring-loaded plunger, activated by the user's thumb. The invention also includes the use of a shield mechanism, as well as various cup transporting mechanisms.
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