Snap into place for quick and effortless replacement. No tools required,easy to replace the filter.It's normal the side brush lose the shape and get curved in transit,please just soak the bristle into warm water for 1 minute,they will get recovered immediately.vacuum accessories are easy to remove dirt, dust and trash in corners and edges effectively. Especially your hair and your pets hair.vacuum cleaner accessories are high quality. It is made of high-strength and environmental friendly materials.Recommendations:Please clean the filter frequently and replace the brush and filter every 2-4 months to maintain the high performance of the vacuum cleanerNotice:If you have any questions, please contact us in time, we will definitely reply you within 24 hours