erduoduo 200 pcs Vial Rubber Stoppers Mushrooms Self Self-Healing Injection P...

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erduoduo 200 pcs Vial Rubber Stoppers, Mushrooms Self Self-Healing Injection Ports Solid Seal for Sealing Glass Vial and Liquid Culture Jars (13mm)
Package included: 200 pieces vial rubber stopper.
Dimension: 13mm diameter self-healing injection ports. Suitable for a 7 mm or 1/4 inch diameter hole opening, Used for glass vial and liquid culture jars.
Material: made of high-quality Rubber, these stoppers are durable, washable, reusable, high Chemical-resistant.
Perfect for storing any kinds of liquid or solid, good Heat Stability, Butyl Rubber can be sterilized by steam under high pressure, which is reusable and not out of shape.
Butyl Rubber are suitable for for kitchen, laboratory, hospital, etc.Great for liquid culture, injection ,refill tanks and grain masterbatches