A super simple and effective way to stabilise your heavy telephoto lens or camera and track any action with gimbal-like movement. Attach the StediLens ball to your camera or lens mount and place easily into the StediLens Window mount to give smooth stabilised movement to your camera without bearing the weight of the lens Use on any car window and be ready to shoot in seconds Non-slip silicone insert ensures firm grip on window Built-in vibration damping