Features: The slide rail is made of high quality carbon fiber, other parts are made of high strength aluminum alloy. Equipped with 1/4 "and screw mount, suitable for GoPro Hero action cameras, digital SLR cameras and pocket cameras. The slider's built-in level is designed to help you find balance quickly. Four supports can independently adjust their height to adapt to the uneven surface. You can adjust the damping between the slider and the track by rotating the lock knob. Adopts 1/4 "and 3/8" standard screw mounting design, which can be connected with other photographic equipment like tripod, head. Specification: Color: black Material: aluminum alloy, carbon fiber Maximum load: 3kg Suitable for GoPro Hero action cameras, digital SLR cameras and pocket cameras. Slide distance: About 31cm / 12.2in Slide rail length: 40cm / 15.7in Weight: Approx. 700g Package List: 1 x Slide Rail 1、The slide rail is made of high quality carbon fiber, other parts are made of high strength aluminum alloy. 2、Equipped with 1/4 and screw mount, suitable for GoPro Hero action cameras, digital SLR cameras and pocket cameras. 3、The slider's built-in level is designed to help you find balance quickly. 4、Four supports can independently adjust their height to adapt to the uneven surface. 5、You can adjust the damping between the slider and the track by rotating the lock knob.