Great Value Package: Side Brush x 2 + Filter x 1 + Rolling Brush for Robovac x 1 + Dustbag for Station x 3 + Roller Mop x 2 + Dirty Water Reservoir Filter for Robovac x 2. The products are made of high-strength materials to ensure optimal performance and a healthier lifestyle. The products are made of high-strength materials to ensure optimal performance and a healthier lifestyle. Compatible with eufy Robot Vacuum Omni E28 and E25. Replacement Frequency: Please clean the filter frequently. We recommend replacing the brush, roller mop and dustbag every 2-3 months, also depending on the frequency of use, to keep the vacuum working at high performance and extend your vacuum Cleaner's life. Tool-Free Installation: Effortlessly replace parts on your Robot Vacuum with a simple, straightforward process that requires no additional tools, making it an easy-to-use cleaning tool. Note: To protect your robot vacuum and extend its lifespan, we recommend using authentic eufy replacement parts. We’ve received complaints about non-compliant sellers offering substandard alternatives.