Two different sizes of openings: we offer 20 mm and 13 mm rubber stoppers for different sizes of bottles, jars or tubes. They are also packed in different packages, so you won't mix them up.
Perfect seal: heat resistant and can be cleaned at high temperatures. These stoppers have an inert film on the surface to seal the bottle better, so it keeps the item stable and lasts longer.
Quality materials: made from high quality rubber, these stoppers are durable, washable, reusable and chemically resistant. Ideal for storing a variety of liquids or solids
Versatile use: can be used in kitchens, laboratories, hospitals, etc. Ideal for storing spices, juices, perfumes and any other liquids or powders in everyday life
Packing list: 50 x 20mm vial rubber stoppers for 13mm opening, 50 x 13mm vial rubber stoppers for 7mm opening. If you have any problems, please do not hesitate to contact us

3117 and 3127 Vial Sets. Agate Vial Set, 5/8 x 1-1/3 in.: 5/8 in. (15.9 mm) diameter x 11/3 in.(33 mm) long. handmade from Brazilian agate Handmade from Brazilian agate; must be run inside cushioned SPEX SamplePrep 6133 vial (included). Includes stopper and 1/4 in.(6.35 mm) agate ball.

Our mission will be to become an innovative supplier of high-tech digital and communication devices by furnishing benefit added structure, world-class manufacturing, and service capabilities for vial stopper size,We will endeavor to maintain our great reputation as the best products supplier in the world.If you have any questions or comments, please contact with us freely.The product will supply to all over the world, such as Guinea-Bissau ,Cayman Islands ,Latvia ,Senegal ,Saint Vincent and the Grenadines .We will initiative to participate in international competition to be a first, class manufacturer of this product in the world.Providing the best products, the most perfect service with the most reasonable prices are our principles.Our products have been exported to Africa, the Middle East, Southeast Asia and other regions.We sincerely hope to establish wide contact with all potential customers both in China and the rest part of the world.We'll redound up on society for high quality merchandise and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world..We sincerely hope that we could do business with customers both at home and abroad.With the first-class solutions, excellent service, fast delivery and the best price, we've won highly praise foreign customers'.As an experienced factory we also accept customized order and make it same as your picture or sample specifying specification and customer design packing.When you are keen on any of our goods following you view our product list, be sure to feel free to make contact with us for inquiries.