Review on 🧹 Hongfa Replacement for Roomba S9/S9+ Vacuum Parts - 18 Packs Replenishment Kits - Roomba S Series Robot Vacuum Accessories: Rollers, Filters, Side Brushes by Jill Ellis

Seems like a good deal until you install the casters. The reels will smash together and Roomba will appear to self-destruct. It's entirely possible that due to overloading, they could burn out the gears or motors of a $1,000 robot. If your robotic assistant has ever picked up a brick or Lego, this product will keep it going.