The product is a 4" Hy-Ko vintage solid brass house number #3, suitable for entire doors. It is made of brass-plated aluminum and polished brass with nails included for easy installation. This modern-style house number features a polished brass finish, adding a touch of elegance to any home's entrance. The product is of the brand Hy-Ko and is designed for both classic and contemporary styles, making it a versatile choice for enhancing the look of your door.