Usage Tips:- Compatible with for J & I & E series i7 i7+ i3 i3+ i4 i4+ i6 i6+ i8 i8+ j7 j7+ E5 E6 E7 Robot Vacuum Cleaner. This set works as great as the ones, precision fit and easy install. PREMIUM QUALITY MATERIAL - The products are made of high-strength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle. HIGHLY EFFICIENT TECHNOLOGY - Unique Dual Multi-Surface Rubber Brushes don' 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. THE POWERFUL CLEANING FUNCTION - makes householdcleaning more time-saving and labor-saving. It is suitable for a variety of floors such as ceramic tiles, marble, and wood floors. Colour:As shown Material:plastic Package Contents: 2 x Main Brush 8 x Edge Brush 8 x HEPA Filter Elements 8 x Dust Bag 1 x Screwdriver 1 x Cleaning Brush 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.