Review on LOVECO 4 Set Replacement Rubber Brushes for iRobot Roomba E Series E5 E6, i Series i7 i7+ i8 i8+ i3 i3+ i4 i4+ i6 i6 Plus Robotics - Multi-Surface Rubber Brush Set by Lori Ortman

None of these parts are considered factory if you have ever replaced them with factory ones. But why a star? Filters are fine. The roles are fine. Not very good, but they work. But the triple brush is NOT BAD. The hex hole that the triple brush goes in is too big. Factory brushes fit like a glove. They flap around and rely on a screw to stay in place. Therefore, they work freely, and the triple brush flies off. It's also painfully obvious how cheap the brush material is compared to the factory brushes. I will never buy them again. Buy a factory one and if you want to extend the life of the filter, just get some compressed air.