Keep your iRobot Roomba running like new without spending a fortune on OEM parts! This comprehensive maintenance kit is compatible with a ton of models: the i-Series (i1, i2, i3, i4, i5, i6, i7, i8 and their '+' versions) and the e-Series. Please double-check your specific model before buying (it does NOT fit the Combo j7/j9 models). The kit has everything you need for a full refresh: 1 rubber roller brush (the main one), 1 front caster wheel, 6 side brushes (the little sweeping ones that screw in), and 5 HEPA filters. It even comes with a cleaning tool and a screwdriver. Replacing these parts every 2-3 months (depending on use) is key to keeping your Roomba's suction strong and protecting its motor from clogs. A quick tip: if the side brushes arrive a little bent from shipping, just soak them in warm water for a few minutes and they'll straighten right out – no harm done. It's an affordable way to extend the life of your robot vacuum and ensure it keeps your floors clean and your home's air quality good.