General description This Roller Brush Replacement Part is designed for iRobot E/I/J Series, specifically compatible with models including i7, i7+, i3, i3+, i4, i4+, i6, i6+, i8, i8+, J7, and J7+. Made from high-quality rubber, these brushes provide excellent flexibility and contact with various floor types, ensuring efficient cleaning. Technical specifications Material: Rubber Color: Green Package Contents: 4 pairs of roller brushes Measurement allowed error: +/- 1-3 cm Usage Dual multi-surface roller brushes effectively absorb dust, dirt, and pet hair. Unique design prevents tangling with pet hair while maintaining constant contact with carpets and hard floors. Other information Note: Some noise may occur during use, but it will diminish over time. Light reflection and different displays may cause slight color variations from the actual product.