Usage Tips:Product List: Our accessory kit is compatible with for iRobot Roomba Combo j7/j7+/j7 plus/j9/j9+/j9 plus, the product contains 4 roller brushes, 6 side brushes, 4 HEPA filters, 4 wipes, 6 dust bags, 1 brush, 1 screwdriver. 26 items in total. High-quality roller brush and side brushes: The main brush is made of abrasion-resistant material and penetrates deep into carpet fibers, crevices and floor joints to remove dust, dirt and hair. The side brushes clean corners and edges more effectively. Does not damage the floor. High-quality dust bag: The dust bag is made of high-quality and durable material with good sealing, which effectively avoids dust and stains when cleaning. The 4-layer filter element can effectively absorb garbage odors and facilitate users to dispose of garbage. HEPA Filter & Cleaning Mop: The filter uses high-quality filter materials specially added with activated carbon to effectively filter dust, pollen and other tiny particles in the air. The cloth is made of microfiber, which has strong water absorption and can effectively moisten the floor and wipe stains to achieve a more powerful cleaning effect. Recommended replacement frequency: main brush: every 6-12 months; side brush: every 3-6 months; HEPA filter: every 3-6 months; wipes: every 1-2 months; dust bag: follow the APP command prompt. Can be judged by the actual situation. Colour:As Shown Material:Plastic Package Contents: 4 * Roll Brush 6 * Side brush 4 * Filter 4 * Mop Cloth 6 * Dust bag 1 * Clean brush 1 * screwdriver Only the above package content, other products are not included. Note: Light reflection 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.