Produced from nickel-plated brass - The Pro Metal tap connector is strong, durable, scratch and frost resistant. Securely attaches to 95% of outdoor threaded taps, by simply screwing it onto the end of the tap. It includes a 1/2" adaptor for older taps. Click & connect your hose in seconds - Ideal for use with the Hozelock quick connect system, to ensure a leak-free connection every time.