decent replacement bag and I have use many of these with no problem . I would have rate they at 5 star but they do have one small glitch . I believe these be originally design for older Bosch model with a elongate container\/bag compartment . the current model bag compartment be wider than long so that be the glitch . the Bosch bag be design for this and if you be look for a better fit , then I would choose that route . but for the price , these be a great alternative . in my opinion 20 bag at the same cost as 5 Bosch bag be worth it . they do fit fine and might hold a little less due to be lengthwise . instead of just insert the bag , I will open\/fluff it up and then insert it . it take all of about 10 seconds . if you just insert the bag , the bottom fold over and obviously it 'll affect how much it can hold . as a quick comparison Bosch bag sit sideways and these sit lengthwise . Hope that help .