Rubber Bottle Stoppers Self Healing Injection Ports. Use 1/4 inch or 7mm drill or punch for making an opening. Fits 13mm Bottles with 7mm opening. 100% Steam Sterilization Safe

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Rubber Bottle Stoppers Self Healing Injection Ports. Use 1/4 inch or 7mm drill or punch for making an opening. Fits 13mm Bottles with 7mm opening. 100% Steam Sterilization Safe

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