Introducing the Plasticoid VWR Black Rubber Stoppers, designed for versatility and reliability in your laboratory needs. This pack features one-hole stoppers, ideal for securing flasks and test tubes while allowing for the insertion of tubing or other apparatus. Made from durable black rubber, these stoppers provide an airtight seal, ensuring your samples remain uncontaminated.
Perfect for various applications, these stoppers are resistant to chemicals and temperature fluctuations, making them an essential addition to any lab setup. Stock up on these reliable stoppers and enhance your experimental efficiency today!