| 摘要 |
A shallow inverted circular saucer shaped first member has upper and lower exposed surfaces. A flat ring shaped second member has an inner periphery spaced from and surrounding the first member and also has upper and lower exposed surfaces. The first and second members are detachably interconnected. A plurality of vertical prongs cooperate with the members. One prong has an upper end secured to the center of the lower surface of the first member. The remaining vertical prongs have upper ends secured to the lower surface of the second member and are equidistantly spaced from each other.
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