Deployment of two Supporting Props let you stiffen Slider mounted on Tripods and make it more stable. This solution helps to avoid shakes and vibrations when loaded trolley reaches far end of Slider's rail. Props are to be mounted on opposite Tripods legs with adjustable grips. On the other side, Props are connected to Sliders own legs with fast “Click” Clamps. In the center of the SLP support is locking mechanism which allows you to adjust its length. Through this solution it is possible to set the slider at various angles. Mounting supports takes only few seconds while changing angle is almost instantaneous.