The safety indicator of the Mobeli handles is simply revolutionary. This is a world premiere: the first handle which monitors the vacuum‘s strength and therefore the adhesive force. The Mobeli safety rocker constantly monitors the vacuum. When the warning rocker is fully lowered, the adhesive force is at it‘s strongest and the handle is safe to use. If the warning rocker is raised showing the red warning rim, the Mobeli vacuum pads needs to be removed and reset. People with visibility impairments can touch the safety indicator and know by touching whether it‘s safe or not.