You will get: 1 * multi-function brush, 1 * pet brush, 1 * carpet brush, 1 * wooden floor brush and 2 * precision filter, different types of brush heads for different floor cleaning materials, fast and efficient. High-efficiency filtration: H12 precision filter element filters 99.5% of fine dust particles, as well as pet hair, smoke, bacteria, formaldehyde and tiny particles, purifying indoor air. Convenient to use: The replacement cleaning brush can be easily replaced without any tools, the HEPA material can be washed repeatedly, and the filter can be cleaned directly with clean water, which is more hygienic and environmentally friendly. Compatibility: Fits Bissell Crosswave 1866/2306/2551/1785 In order to keep your vacuum cleaner performing well, it is recommended to Replace the cleaning brush regularly for 6 months and the filter for 3 months, depending on the frequency of use. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and