my bottom part(rubber bottom) goes in and comes out.what should i do?

Use the ask a question get an answer thread in beyblade general. This is for questions about the WBO. You should read the forum rules etc.

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This part of the site is for questions about the WBO. Questions about Beyblade as a hobby should be asked in the Ask a question, get an answer thread.

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戦う, 正義の 仮面ライダーV3!