Description
Features:
- Material:made of high quality Butyl rubber material, durable, washable and reusable
- Size:used for 20mm glass vial and liquid culture jars, fit about 13mm diameter opening
- Easy to use: no need to remove the glue plug, you can inject the culture with the injection needle
- Perfect seal: resistant to high temperature and washable, creating a great seal that extends the life of the material in the bottle
- Various Usages:suitable for kitchen, laboratory, hospital, etc.Great for liquid culture, injection ,refill tanks and grain masterbatches