Zhè zhǒng diàndòng ànmóbàng dài jǐ zhǒng bùtóng de ànmótóu.
This electric massage wand comes with several different massage heads.
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按摩棒 literally means 'massage stick'. Sold openly as muscle massagers, but the same word is also a common slang/euphemism for a sex toy. Context (gym/back vs. private) usually disambiguates.
