About Screw-On Wheel Spinners:
Screw-on spinner tops use 3" ID threads and attach by literally screwing on (like a peanut butter jar lid). Mounting towers for screw-on spinners are actually adaptor rings.
back side of a
Screw-On top.
Screw-On Spinner TopsAbout Screw-On Wheel Spinners: Screw-on spinner tops use 3" ID threads and attach by literally screwing on (like a peanut butter jar lid). Mounting towers for screw-on spinners are actually adaptor rings. back side of a Screw-On top.
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