Quartz Crystal Cabinet Knobs / drawer or furniture pulls bring a natural, designer look to your kitchen or bath. Each Quartz Crystal knob is made from a large, chunky, clear / white piece of quartz approximately 3" long. The quartz is permanently affixed to high quality cabinet hardware, and each piece is unique. The hardware piece has a nickel finish, projects 5/8" from the mounting surface before addition of the quartz, and includes a standard 8-32 threaded 1" screw.