Slipping fingers on your radio sticks? The Thumb Savers can eliminate this hazard when piloting your drone. Ergonomically designed to fit the curve of your thumbs the Thumb Savers allows you to comfortably control your drone and eliminate finger-fatigue. Installation is simple with the inner press fit grips designed to grab the vertical knurl of the sticks, just place over the sticks and push into place until the top of the stick is flush with the bottom curve of the Thumb Saver. An internal Taper prevents the Thumb Savers from being pushed down any further.