1 Inch Warm Amber Octagon Crystal Cabinet Knob (Oil Rubbed Bronze Base). Octagonal knob measures approximately 1 inch in diameter from widest point. Knob has a projection of 1 1/4 inch. The oil rubbed bronze base features a georgian roped border and measures 1 2/3 in diameter. These contemporary crystal knobs are wonderful. Subtle and beautiful, this color brings warmth and light into any room. These warm amber contemporary glass knobs are perfect for furniture drawers, bathroom vanities, dressers, furniture restoration, cabinet door handles and drawer pulls.