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Heavyweight Sterling Silver Ring of O, BDSM Ring, Story of 'O' Ring. Fully UK hallmarked. 5 mm Slave ring. Sizes I to Z (US 4 1/2 - 12 1/2)
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Amazon.com: JUN-STORE O-Rings CS2.62mm NBR X Ring 5PCS ID 59.99/58.42/56.82/55.25/53.65x2.62mm Double Acting Seal X-Seals Quad Ring AS568 Standard XRing SENMIAO-TH (Size : ID59.99x2.62mm) : Industrial & Scientific
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