DescriptionRubber plug is used to seal equipment in chemical experiments, such as pharmaceutical, chemical, mechanical, and scientific research industry. Perfect for demanding sealing applications, industrial, lab, marine and household uses. Also used for heavy-duty equipment isolation applications.Features- Color: Grey. - Material: Composite material. - Size: About 1.8x1.8x0.8cm. - Made of premium material, durable for long time use. - Specially designed for medical bottle use. - Perfect for demanding sealing applications, industrial, lab, marine and household uses. - Also used for heavy-duty equipment isolation applications. - Warm tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!