About this item 【Perfect Fit】10 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 i7 + ( 7550 ), i8 i8 Plus i8 + ( 8550 ) s9 s9 Plus s9 + ( 9550 ) vacuum bags. The perfect replacement for roomba bags. 【Moderate Capacity】Dimensions 4.1" L x 5.7" W x 6.4" H .Every replacement roomba vacuum bag can hold around 30 bins of dusts and debris. 【4 High-efficiency filters】 2 layers of superfine melt-blown fiber layer & 2 layers of non-woven fabrics, Capture 99.97 Particles as small as 0.3 microns in size like dust, hairs, etc.better seal performance, realize the high-strength and durability of the automatic dirt disposal bags. 【Good Seal Design】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, keep the air clean. 【Easy to Install】Roomba replacement bags are very easy to install，you could install roomba replacement parts without tools, To ensure fresh air in your home, we recommend replace roomba i7 bags replacement every 1 week.