The DEV-1000 Camera Slider from Glide Gear allows you to slide your DSLR or video camera while shooting video. It is 23.6 in length, made from anodized aluminum, and has a weight capacity of 19.8 lb. Its self-lubricating rails and plastic bearings are designed to provide a quieter slider than those with metal bearings. A built-in bubble level allows you to straighten your slider to the horizon. The rubber tipped feet allow you to use the slider as a standalone unit and can be removed when mounting the slider on a tripod. You can adjust the tension of the slider or lock it in place by using the turning screw knob on the trolley. Two 1/4-20 and two 3/8-16 holes on the base allow you to mount the slider to most tripods. A reversible thread on the trolley will take most tripod heads, allowing you to easily mount your camera to the slider.