1. Compatible models: for iRobot Roomba 500 /600 / 700 / 800 / 900 / i7 / s9 series vacuum cleaners 2. Made of high-quality materials, durable 3. Easy to disassemble and replace as part of daily maintenance. 4. For better results, spare parts should be replaced every 1 - 3 months. 5. Exquisite and delicate, highly matched with the device
