Specification Brand : ARTIBETTER BulletPoint : Inner Diameter: D4-D140, Outer Diameter: D125 (22Pcs) BulletPoint1 : - Small size and light weight, easy and convenient to take and store, a convenient tool. BulletPoint2 : - Bung plug stopper is made of durable silicone material, not easy to break, you can use them trustingly. BulletPoint3 : - Effectively prevent bad odor and , very practical, can be used for food sealing. BulletPoint4 : - The silicone plugs Rubber Stoppers Plugs are also suitable for laboratory use, can be used to seal test tubes. BulletPoint5 : - Food grade silicone plugs, no harm to human body, you can use them with confidence. Color : White ExternallyAssignedProductIdentifier : 8677826706601 FabricType : metal FitType : Universal ItemName : ARTIBETTER Silicone Test Tube Plugs 5 Pcs Sealing Plugs for Test Tubes Food Grade Lab Use ItemPackageDimensions_Height : 1.97 inches ItemPackageDimensions_Length : 5.91 inches ItemPackageDimensions_Width : 1.97 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-rubber-stoppers Manufacturer : Artibetter ModelName : Masking Tools & Equipment ModelNumber : 1LP2771WQ198HT1J919955AL NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PartNumber : 1LP2771WQ198HT1J919955AL ProductDescription : Description Are you in need of a silicone plug that is both and reliable Do you require a durable and versatile tool that can handle various tasks? If so, you have come to the right place! Our top plugs are sure to satisfy your requirements and are an excellent option for you.