These black rubber O-rings from Preat Corporation are standard size #3, designed for use in dental attachment and post systems. Each ring has a 1.40mm internal diameter and a 4.50mm outer diameter, and is made from non-latex material. Supplied in a pack of 12.
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These black rubber O-rings from Preat Corporation are standard size #3, designed for use in dental attachment and post systems. Each ring has a 1.40mm internal diameter and a 4.50mm outer diameter, and is made from non-latex material. Supplied in a pack of 12.
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