[Perfectly Fit]The Replacement parts is Only Compatile with for Combo 10 Max,Combo j7+/Plus & Combo j9+ Robot Vacuum. Not for j7/ j7+ j9 models and other i-e-j series, please check your vacuum cleaner model before order. [ Material] The main brushes are mades of high quality plastic, Compatible and work just like the your one, The side brush not scratch the floor and furniture, greatly the safety and cleaning effect during the process of the use. [High-Efficient Filtration]The high-efficiency filter is made of plastic washable filter paper that can effectively filter up to 99.97% of particles as small as 0.3 microns. The filter paper is folded densely, which increases the filtering area and improves the filtering performance.provides an additional sweeping brush to help you clean the filter more effectively. [Premium Quality Material]This mop pad made of premium microfibers which has strong decontamination to pick up ultra-fine dust & debris, break-up sticky messes, grime and kitchen