Buy from Amazon : br br DryLin W1080-C Linear Guide Camera Slider with Clamp br br Camera slider for mounting camera equipment to use in sliding and panning video applications br 1888 lb static load capacity for supporting camera weight br Dry-lubricated anodized aluminum construction for corrosion resistance and low maintenance care br 107 x 1000 mm guide rail holds the sliders carriage and any mounted cameras and lenses br Hand clamp and carriage screws adjust to increase or decrease slide friction