Two-piece silicone rubber sealing hole plugs (dust plugs) — reliable sealing for 13–19 mm holes. T-type stopper options: black (18 mm, pack of 2) and white. Why you need this Stops dust, dirt and moisture from entering open access holes and knockouts. Simple, reusable solution when a permanent plug or gasket is unnecessary. Two-piece T-style design provides a secure blind plug that grips the hole and stays in place during handling. Key benefits Effective sealing: flexible silicone forms a tight seal to reduce contamination and minor leakage. Easy to use: push-in installation and simple removal without tools. Durable and reusable: silicone resists compression set, so plugs can be removed and reinstalled repeatedly. Compatible: designed to fit standard hole diameters from 13 mm to 19 mm. Versatile colors and pack option: T-type stoppers available in black (18 mm, pack of 2) and white. Material and performance Made from flexible silicone rubber for a resilient, pliable fit. Withstands routine handling and exposure to workshop dust and light moisture. Two-piece construction creates a reliable blind plug for temporary or long-term use. Practical applications (examples) Electronics enclosures and control panels: block unused knockouts to protect internal circuitry during assembly or storage. Automotive and workshop use: seal access holes during painting, cleaning, or maintenance to prevent overspray and grit intrusion. Furniture, storage boxes and hobby projects: cover screw or access holes for a neater finish and to keep dust out. Specifications at a glance Type: Two-piece round T-style silicone sealing hole plug (dust plug) Fits hole diameters: 13–19 mm Options: Black T-type stoppers (18 mm, pack of 2); white available Material: Flexible silicone rubber Key functions: Dust and moisture resistance, reusable sealing, easy install/remove Suitable for professionals and hobbyists who need a fast, reliable way to seal standard-size holes without tools.