Telescope and spotting scope vibrations are caused by windy conditions, unsteady mounts/tripod or accidental bumps to the instrument, and result in reduced image quality whether observing or photographing. Celestron's set of three Vibration Suppression Pads reduce the time the scope resonates with vibration by nearly 100%, and also decrease the amplitude of the vibrations.
To make the notion simpler to understand, imagine two identical scope setups adjacent to one another with both having a laser pointer affixed at a wall some distance away from the scopes. Were you to influence both scopes with an identical vibration-causing shock, the laser beam originating from the scope with the Celestron Vibration Suppression Pads underneath would both move a shorter distance upon the wall and come to rest much quicker than the beam originating from the scope without the device installed. They really work!
The pads fit between the bottom of the tripod legs and the ground, a simple and functional solution to the problem of image disturbance. They work on most any surface: grass, dirt, concrete, asphalt & wood. Suitable for both telescopes and spotting scopes.