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These rubber stoppers fit for sealing and protection tasks such as hole plugs, spraying, coating, and paint protection. They are commonly used with test tubes, flasks, chemical bottles, and condensers in labs. They also serve as effective sewer, drain, or water pipe plugs, and are suitable for blocking ports and pipelines in machinery, automotive, and construction work. Furthermore, they work well for DIY projects and craft storage organization.SpecificationMaterial: RubberColor: Black/WhiteBottom Diameter: 33 mm / 1.3 InchTop Diameter: 42 mm / 1.65 InchTotal Height: 30 mm / 1.18 InchPacking List: 4 Pcs x Rubber Plugs for Round HolesAdvantageThese rubber drain stoppers are made from flexible, non-harmful rubber, offering strong stability and corrosion resistance.

These rubber stoppers fit for sealing and protection tasks such as hole plugs, spraying, coating, and paint protection. They are commonly used with test tubes, flasks, chemical bottles, and condensers in labs. They also serve as effective sewer, drain, or water pipe plugs, and are suitable for blocking ports and pipelines in machinery, automotive, and construction work. Furthermore, they work well for DIY projects and craft storage organization.SpecificationMaterial: RubberColor: Black/WhiteBottom Diameter: 33 mm / 1.3 InchTop Diameter: 42 mm / 1.65 InchTotal Height: 30 mm / 1.18 InchPacking List: 4 Pcs x Rubber Plugs for Round HolesAdvantageThese rubber drain stoppers are made from flexible, non-harmful rubber, offering strong stability and corrosion resistance.