Fit Model: Compatible with for iRobot Roomba i7 Plus i7+ (7550) i3+ (3550) i4+(4552) i6+ (6550) i8+ (8550) s9+ (9550) j7+ (7550) I & S & J Series Robot Vacuum Cleaners, And Fit for all iRobot Clean Base Automatic Dirt Disposal Models. Works Great: Compatible and work just like the one, The replacement dust bag can be reused. After the dust bag is full, you only need to pour the dirt in the dust bag into the dumpster, and then you can use it again. Easy to Install and Durable: Since our replacement accessories are well compatible with your vacuum robot, You can easily install and use, Each bag can hold 30 bins of dirt and debris, easy to clean and provide you with a comfortable place. Compared with traditional cleaning methods, this dust bag has a strong sealing performance and can be easily discarded without dust. Colour: Material:non-woven fabric Package Contents: 6 x vacuum 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.