Perfect Compatibility: Designed for iRobot Roomba series including·i1+(1552)·i3 i3+ i3 Plus(3550)·i4 i4+ i4 Plus(4552)·i6 i6+ i6 Plus(6550)·i7 i7+ i7 Plus(7550)·i8 i8+ i8 Plus(8550)s9 s9+ s9 Plus(9550·j7 j7+ j7 Plus(7550). These bags are engineered to fit perfectly, ensuring efficient operation and compatibility. Advanced Filtration System: Our vacuum bags feature filtration technology melt-blown fabric and non-woven fabric. This design effectively traps 99.9% of fine dust and particles, enhancing air quality and providing a cleaner living environment. Enhanced Sealing Technology: Experience superior containment of dust and debris with our vacuum bags' upgraded sealing design. This prevents escape of dirt and ensures that all collected waste stays inside the bag, making your cleaning process more efficient and less messy. User-Friendly Installation: Each bag is designed for quick and easy installation, snapping into place without hassle. Capable of holding up to 30 bins of dirt, these bags reduce the need for frequent replacements, making your vacuum maintenance both simple and efficient. Optimal Pack Size: This 20 Pcs of replacement vacuum bags provides a practical supply, ensuring you have enough on hand to replace bags as needed. The bulk pack is an economical choice for keeping your for Roomba operational without frequent purchases. Compatible devices: for iRobot Roomba i3, i4, i6, i7, i8, s9, j7 series Colour:As Shown Material:Non-woven fabrics Package Contents: 20 x dust bags Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.