wooden butterfly claw knife assembly puzzle model wooden building blocks confused educational toys three-dimensional model folding knife 木制蝴蝶爪子刀拼装拼图模型木质积木迷糊益智玩具立体模型折叠刀

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butterfly knife spring knife ejection knife folding cutting blade yao guang a folding knife straight jump knife butterfly knife + folding cutting blade butterfly knife + folding cutting blade + straight jump knife butterfly knife + spring knife + ejection knife folding cutting blade + yao guang a folding knife + direct jump knife any two types [can be specified]] any three models [can be specified]] optional four models [can be specified]] optional five [can be specified]] luxury six all take away random one