Our solid rubber stoppers are suitable for various laboratory and industrial applications, including chemical reactions and sample storage, for plugging and sealing test tubes, containers, flasks, pipes, and other experimental instruments to prevent leakage.SpecificationColor: BlackMaterial: RubberMax Diameter: 28mm / 1.1 inchMin Diameter: 24mm / 0.94 inchHeight: 25mm / 0.98 inchPacking List: 5 Pcs x Lab Rubber PlugAdvantageDurable Material - The laboratory stopper is made of rubber material, with good sealing performance, sturdy and durable, not easy to deform, washable, and can be used for a long time.
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