[Compatible Models]: These replacement parts are professionally designed to be perfectly compatible with for L20/L30 Ultra robot vacuum cleaners, and can work at their best like the accessories. [High-quality Materials]: The main roller brush and side brushes are made of high-quality environmentally friendly materials, which are safe and reliable, effectively and thoroughly remove dust and stains from the floor without damaging the floor. The side brush can reach deep into corners and edges to remove more dirt and debris. [Efficient Performance]: The filter adopts high-density filtration technology to block 99% of pollen, dirt, dust, pet hair and other particles as small as 0.3 microns. The reusable microfiber mop pad can effectively remove stubborn stains and make your floor clean and bright. [Good Sealing] This dust bag adopts a strong rubber seal and tough material, which has a good sealing performance, can collect a lot of dust and dirt, effectively absorb odors, and keep the air