We offer discount for large quantity. Welcome to contact with us! PERFECT COMPATIBILITY:The replacement parts kit is compatible with for Roomba i7(7150) i7+(7550)/i7 i3+(3550) i3(3150) i6+(6550) plus vacuum cleaner,including everything that you need to perform regular maintenance on your Roomba i Series Robot.Dual Multi-Surface Rubber Brushes is Uniquely designed with rubber treads to hug different floor surfaces, removing everything from small dust to large debris. The unique flexible rubber brushes hug different floor surfaces, staying in close contact with wood, and carpets, to help thoroughly clean your floors. The unique Dual Multi-Surface Brushes work together to help get floors thoroughly clean.VALUABLE PACKAGE - Includes 2 Set Multi-Surface Rubber Brushes 10 High-Efficiency HEPA Filters 10 Edge-Sweeping Side Brushes 10 Dirt Disposal Bags The products are made of high-strength and environmentally friendly materials to ensure optimal performance and a healthier lifestyle.EASY TO CLEAN AND REPLACE -Clean by hand washing in warm water and let it completely air dry before reusing them. Regularly clean replacements parts to improve suction and performance and extends the life of your robot vacuum. For best results,Vacuum Dust Bags and filters should be replaced every 2 - 3 months.Colour:As shownMaterial:plasticSize:Main brush: 18.6CMPackage Contents:10 x filter10 x Edge brush2 pairs x main brushes10 x dust bag1 set x cleaning toolsOnly the above package content, other products are not included.Note: Light shooting 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.