Flexible hollow hoop and ball
作者： Knolly Worrell
DOI:
关键词:
摘要: A hoop of hollow construction a shape to fit substantially snugly about user's waist which has ball internally freely mounted in the so that may rotate through interior passageway response motion wearer's body. The cavity can have ridge rings running radially across body hoop, also be formed on exterior hoop.
lens.org 参考文章(5)
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