Check the listing for details. 10pcs Hole Plug 1/2 Inch (12mm) Button Plugs Fit for 9mm Hole Black. Condition: New. Listed at 14.18 USD. 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: 0.47"/12mmBottom Diameter: 0.62"/15.8mmInner Diameter: 0.24"/6mmSlot Width: 0.12"/3mmOverall Height: 0.31"/8mm.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: 0.47"/12mmBottom Diameter: 0.62"/15.8mmInner Diameter: 0.24"/6mmSlot Width: 0.12"/3mmOverall Height: 0.31"/8mm.