【Wide Compatibility】The dust bag is suitable for iRobot Roomba i7(i7156) i7+/i7 Plus(i7556) i3(i3152) i3+(i3552)/i4 Plus (i4552, 4550) /i6+(6550) /i8 i8+(8550) / S9 (9150) S9+/s9 Plus (9550, s955020)/j7/E5(e5154, 5150) E6(e6192, 6199) E7 Robot Vacuum Cleaner. Please check your machine model before purchasing. 【High-quality material】The Irobot Roomba i7 vacuum cleaner bag is made of 2 layers of high-strength ultra-fine blown fiber filters and 2 layers of non-woven fabric, which can effectively block pollen and fine dust particles, and the edges are well sealed and more durable. 【Easy to install】Customized for iRobot, designed with a non-slip top that snaps on for quick and easy replacement. The replacement and installation methods are the same as the original parts. You don't have to worry about installation problems. 【Super value package】: We provide 14 vacuum cleaner bags. We recommend replacing the Irobot Roomba vacuum cleaner bag every 2 months. It reduces the penetration of dust,