PERFECT FIT - Compatible with i7 i7and i3 i3and i4 i6 i6and i8 i8and or Plus E5 E6 E7 Robot Vacuum Cleaner. This set works as great as the original ones, precision fit and easy install. VALUABLE PACKAGE - Includes 4 set of dual multi-surface rubber brush rollers. The products are made of high-strength and environmentally friendly materials to optimal performance and a healthier lifestyle. HIGHLY EFFICIENT FILTERING TECHNOLOGY - Unique Dual Multi-Surface Rubber Brushes don't get tangled with pet hair. Brushes adjust and flex to stay in constant contact with carpets and hard floors. EASY TO CLEAN AND REPLACE - Regularly clean and replace roller brush to improve suction and performance and extends the life of your robot vacuum. Colour: green Material: plastic and sponge Size: About 185mm in length Package Contents: 4 set x replacement roller brushes Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store