Introducing the Plasticoid VWR Rubber Stoppers, designed for versatility and reliability in laboratory settings. These solid rubber stoppers are perfect for sealing glassware and preventing contamination. With a size of 5, they fit snugly in various openings, ensuring a tight seal. Made from durable, high-quality materials, these stoppers are resistant to chemicals and temperature changes, making them ideal for a range of applications. Whether you're conducting experiments or storing samples, these stoppers provide peace of mind with their dependable performance. Upgrade your lab essentials with the Plasticoid VWR Rubber Stoppers today!