| 摘要 |
The Scent-A-Wheel device consists of several different parts connected together to form a device that acts like a carousel. The device consists of a hub (ball bearing or axle design), arms attached to the hub ("spokes"), a two-piece, adjustable shaft to support that hub and arms, and a base of four "legs" to provide stability and support. A ball bearing within the hub allows the hub and arms to turn on the base.
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