Our Back-to-Back Shower Door Knob is the perfect addition to your shower for a classic and timeless look. This sleek and elegant shower door knob is designed to fit seamlessly onto your shower door, providing a practical and stylish solution for opening and closing your shower. Its clean lines and elegant design complement any shower design, adding a touch of sophistication to your bathroom. This kno comes in several popular finishes and is durable and sturdy. Installation is quick and easy with the included mounting hardware. The knob is 1-9/16" (40 mm) in diameter, with an overall height of 1" (25 mm) from glass. It is suitable for sliding shower doors with a glass thickness range of 1/4" to 1/2" (6 to 12 mm). A hole diameter is required: 3/8" or 1/2" (10 or 12 mm).