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Due to its unique and innovative design, this yo-yo may have a slight vibration (wobble).
However, it is not enough to interfere with play.
The EMP Caps (rubber cap) and EMS Rings (light blue weight rings) keep the weight distribution balance.
If you remove the EMP Caps & EMS Rings, it will cause a very large vibe. Please don't remove the EMP Caps and EMS Rings.
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