Review on 🧹 DLD Replacement Kit for iRobot Roomba 500 Series Model 595: Filter, Side Brush, Bristle Brush, Flexible Brush - Accessory Set for Roomba 600, 610, 620, 630, 645, 650, 655, 660, 680 by Anthony Hobby

According to the reviews I haven't read, the supplied screws for the side brushes are too short. They do not get caught on the internal thread and the brush simply falls off. The shape of the standard side brush does not allow you to reuse the Roomba screw from the old brush you are replacing. Everything else was easy to replace and worked great. Luckily I was able to search my stash of remaining screws and miraculously found one that worked. You have to take care of a small, short replacement yourself. I have a Rumba 655.