Features‎:‎‎- High‎-precision gear box to ensure accurate focus‎,‎ no need to screw the lens focus ring manually‎- High‎-quality aviation aluminum alloy and ABS parts‎,‎ flame retardant‎,‎ wear‎-resistant‎,‎ corrosion‎-resistant‎,‎ anti‎-microbial‎,‎ heat retention‎,‎ property and flexibility‎- Small damping factor‎,‎ good feel‎,‎ convenient and easy to operate‎- Adjust horizontally‎,‎ to fit different sizes of lens‎- Small‎-sized‎,‎ light‎,‎ small clearance‎,‎ portable to carry ‎- Compatible with universal digital cameras or camcorders‎,‎ make photography be a pleasant thing