Description:Material: Made of silica gel, these hole plugs are not only waterproof and dustproof but also exhibit good heat resistance, low temperature resistance, and durability.Good Seal: With its high resilience and snap-in design, the silica gel tube plug ensures a good seal for a wide range of applications. Multiple Use: Good for using as sealing hole plugs, waterproof plugs, test tube plugs, threaded rubber plugs, dust proof plugs hole covers, etc.Notice: Due to manual measurement, please allow a deviation of 1 - 2mmSpecification:Material: Silica GelColor: BlackTop Diameter: 0.51"/13mmBottom Diameter: 0.75"/19mmOverall Height: 0.22"/5.7mm.
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