- Crossbar Handle Mechanism: The innovative brass T-button design allows for easy operation. Simply turn the handle to expand the rubber pad within the hole, creating a perfect airtight seal that prevents leaks. - Durable, High-Quality Materials: Constructed from stainless steel, black neoprene, and chrome-plated brass, this sealing plug is designed for longevity. The highly polished surface resists corrosion from seawater and rust, ensuring reliable performance in marine environments. - Simple Installation: This interior mirror installation is straightforward and fully adjustable. The design ensures that it won’t leak or loosen, even under the vibrations typically encountered on boats. - Effective Sealing Solution: The cam-style mechanism provides a secure, long-lasting seal that effectively prevents liquid penetration. This waterproof cap is ideal for sealing drain holes in tight spaces where traditional toggle fasteners may not fit. Use Cases: 1. Marine Applications: Perfect for sealing drain ports on boats, ensuring that water stays where it belongs—out of your vessel. 2. Outdoor Equipment: Utilize this sealing plug for outdoor gear storage, protecting sensitive components from moisture and corrosion. 3. Automotive Use: Ideal for automotive applications where effective sealing is required to prevent leaks in confined areas. Choose this sealing plug for a reliable, high-performance solution that meets your sealing needs in various challenging environments.