It's best to replace your spare parts every 2 to 3 months to keep your home robot operating at peak performance.

• Work better on deep carpet and Pet Hair than old Red version
• Keep your iRobot Roomba operating at peak performance!
• Replacement filters for iRobot Roomba 500 Series and Roomba Professional Series Robots.
• For best results, brushes should be cleaned every 1-3 uses (depending upon the amount of dirt and debris in your home)
• Package includes: 5 x Flexible Beater Brushes 5 x Bristle Brush

Work better on deep carpet and Pet Hair than old Red versionLOVE(TM)