20 PCS vacuum bags compatible with all cleaning base and iRobot roomba i & s & j series i3 i3 Plus i3 + ( 3550 ), i4 i4 Plus i4 + ( 4552 ), i6 i6 Plus i6 + ( 6550 ), i7 i7 Plus i7 + ( 7550 ), j7 j7 Plus j7 + ( 7550 ), i8 i8 Plus i8 + ( 8550 ) s9 s9 Plus s9 + ( 9550 ) vacuum bags. The perfect replacement for roomba bags., The vacuum bag has a strong seal, effectively reducing the risk of leakage and suppressing dust, ensuring that particles drawn in by the vacuum bag are not easily re-released into the air., Our vacuum bags are made of excellent PP material and precise non-woven fabric that effectively blocks over 99.9% dust and 0.3-micron particles and other debris., Our vacuum bags effectively maintain suction power and better protect your robot.Each bag can hold up to 30 boxes of dust and debris compared to traditional cleaning methods, cleaning is easier., If you have any problems with the vacuum bags, feel free to contact us.