General description The 2X Replacement Kit for iRobot Roomba E5 E6 E7 I7 I7+ I6 I8 I3 I4 Plus 3150 E&I Series includes essential parts to maintain your vacuum cleaner's performance. This kit is designed to enhance the efficiency of your robot vacuum, ensuring it operates at its best. Technical specifications Color: As shown Material: Plastic Package Contents: 4 x Brushes, 8 x Filters, 8 x Edge Sweeping Brushes, 4 x Tires Measurement allowed error: +/- 1-3 cm Usage It is recommended to replace the parts every 1-3 months for optimal performance. Regularly clean and replace the roller brush to improve suction and extend the life of your vacuum cleaner.