Product: Plug Hole Caps 20 Pack T12 Waterproof Rubber Button Plugs Fits 1112 mm Hole White Key benefits Keep openings sealed: these rubber button plugs block unwanted dust, moisture, and debris from entering unused holes and ports. Simple, tool installation: flexible rubber design compresses into 11 to 12 mm holes and stays securely in place. Durable and reusable: waterproof rubber resists cracking and retains shape for repeated use. Why customers need this product Protect equipment and finishes by closing off exposed holes in panels, cases, or enclosures. Provide a clean, finished look where fasteners or wiring are not needed. Prevent ingress of moisture and particles in electronics, automotive, marine, and household applications. What makes these plugs stand out T12 size optimized for 11 to 12 mm holes for a snug fit without extra parts. Waterproof rubber material that balances flexibility for insertion and firmness for retention. Pack of 20 gives spare parts for multiple projects or replacements. Features and specifications Type: T12 rubber button plug Quantity: 20 pieces per pack Color: White Fits hole diameter: 11 to 12 mm Material: Waterproof rubber Function: Seal and protect unused holes, provide finished appearance Typical applications Automotive panels: close unused trim or wiring holes in dashboards, door panels, and consoles. Electronics enclosures: seal knockout holes in control boxes, instrument panels, and small equipment cabinets. Marine and outdoor gear: plug holes in boat consoles, outdoor lighting housings, and storage compartments to reduce moisture entry. Quick installation tips Clean the hole area to remove dirt or grease. Align plug with hole and press firmly until the button sits flush with the surface. To remove, pry gently at the edge with a flat tool or pull out by hand. What you get Twenty T12 waterproof rubber button plugs sized for 11 to 12 mm holes in white color, suitable for a wide range of sealing and finishing tasks.