Construction: It is made up of brass, which is corrosion-resistant, strong, and durable enough for long-term use. Brass is an alloy made of copper and zinc, it has higher malleability than bronze and zinc, brass resists corrosion including galvanic corrosion from saltwater. High Quality: These boat drain plugs are made of high-quality brass that is long-lasting, anti-rust, and colorfast. The snap handle drain stopper is ideal to use in a marine environment. Easy to Use: The snap handle drain plugs are sufficient for daily use and might be useful tools for your everyday work, easy to handle and operate, you just need to install it from the internal beam and simply snaps in the drain tube. Dimensions: Diameter: 1 inch / 25 mm. Package Includes: 1 piece of MARINE CITY Brass Snap Handle 1 Inch Drain Plug for Boats, Yachts, Kayaks, and Marines.