For no discernible reason, several of the biggest companies in the robot vacuum market all marked down prices on their products on Amazon today. Companies like iRobot (the brand behind Roomba), Eufy, Roborock and more have cut hundreds of dollars off retail prices. Scroll through Amazon’s 12 Days of Deals for five minutes and you’ll run into a dozen at least. We picked out three of the best markdowns below.

Robovac 11S Max by Eufy $269 $179

Roomba 960 by iRobot $650 $399

Roomba i7 by iRobot $699 $499