?<strong>Features:</strong><br />It is made of durable material.<br />Non-slip design， and smooth design is no harm to your camera.<br />Adjustable and flexible.<br />Easy to use.<br />Special used for follow focus.<br />Suitable for any lens with diameter from approx. 52mm to 86mm(2.0-3.4in).<br /><br /><strong>Specifications:</strong><br />Material: Rubber<br />Color: Black<br />Gear module: Film industry standard 0.8 thread<br />Total length: Approx. 37cm / 14.6"<br />Weight: 29g / 1.0oz<br /><br /><strong>Package list:</strong><br />1 * Adjustable Gear Ring Belt