Description Our food-grade silicone stoppers are designed to provide a secure and airtight seal for test tubes. Made from silicone, these solid stoppers are suitable for laboratory and kitchen use. They are durable, reusable, and can withstand various temperatures, ensuring your liquids and samples remain clean. Features -Color:White -Material:Silicone -Size:3.60X3.60X3.00cm/1.41X1.41X1.18in -Hole diameter: 8 mm -Foodgrade material: made from foodgrade silicone, these stoppers are safe and reliable for various applications, ensuring no harmful chemicals leach into your stored items -Solid silicone seal: the solid silicone construction provides excellent sealing performance, preventing any leaks, making them ideal for laboratory and kitchen use -Sealing performance: our center hole lab tube stoppers feature a tapered design, providing excellent sealing performance and elasticity for easy use -Versatile with hole: featuring a hole design, these stoppers can be used with test tubes and other containers, offering versatility for different laboratory and household needs -Enough use:providing ample quantity for various uses, whether in the lab, kitchen, or home, ensuring you always have a stopper on hand when neededPackage list: 5 x Silicone plugs