The Eufy RoboVac Bumper Extender v2 is the solution you need for your RoboVac vacuum cleaner. This accessory helps prevent your RoboVac from getting stuck under furniture it can just slide under but never come out from. It is clipped in the middle of the vacuum cleaner's front bumper and is compatible with the Eufy RoboVac models 11s, 25c and 30c.