1. Compatible models: for iRobot Roomba i7 / i7+ / i3 / i3+ / i4 / i6 / i6+ / i8 / i8+ / E5 / E6 / E7 / J7, I, E&J series 2. Made of high quality materials, durable and long-lasting 3. As part of regular maintenance, it is easy to disassemble and replace 4. For better performance, the spare parts should be replaced every 1 - 3 months 5. Exquisite and delicate, highly compatible with the device
