The Amerock 907CBB Traditional Classics Round Knob is an Acrylic ball knob with a Burnished Brass base. Nostalgia redefined. Experience old world charm, deco attitude or retro vibe with distinctive shapes and creative details. Amerock markets decorative hardware solutions that inspire, coordinate and help express personal style. For the kitchen, bathroom and the rest of the home, with a variety of finishes and designs for all decorating tastes, Amerock is the ultimate, time-tested source for hardware needs. Amerock markets products in four categories: decorative hardware, decorative hooks, bath accessories and functional hardware.