Made of high-quality materials, environmental friendly materials, soft and durable to use. Replace the old, broken or dirty Filter, and improve the cleaning ability and effect of the cleaning robot Easy to clean, Help to remove dirt, dust and trash on the floor. Easy to install and remove, no need to spend extra energy and time. HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning per compatiblemance of the sweeper, while reducing the penetration of dust, pollen and other allergens into the air you breathe : Material:Plastic Package Contents: 9x Filter 1x Cleaning Brush 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.