This 31.5" (80cm) Video slider is made out of aluminum and has a base that moves smoothly along rails with ball bearings. It can support camera payloads up to 30lbs (depending on the fluid head you use which is not included.) It has 3 mounting points on the bottom which can allow it to be attached to stands or a tripod. On the ends there are other points where the included leveling legs can be attached for using the slider on the ground or other surfaces. Everything packs up into a nice carrying case along with a cleaning cloth for the rails and a wrench to use on hardware. I used this slider professionally with DSLR cameras and I am selling it because I have upgraded to a dana dolly system. Works very well and is very durable.