General description 100% brand new and high quality, these replacement parts for the Dreame Bot L20 Ultra Robot Vacuum are made of high-quality materials for enhanced durability. The side brush allows your vacuum cleaner to reach deeper into carpets for a more thorough clean, while the HEPA filter effectively filters fine dust, preventing dust, pollen, and other allergens from entering the air you breathe. Uniquely designed brushes with rubber treads adapt to different floor surfaces, efficiently removing everything from small dust to large deposits. Technical specifications Type: Vacuum Cleaner Parts Material: Plastic Package Contents: 2 Roller Brushes, 4 Side Brushes, 4 HEPA Filters, 4 Mop Cloths, 4 Dust Bags Measurement allowed error: +/- 1-3 cm Installation As part of normal maintenance, the replacement parts can be easily removed and replaced. Usage It is recommended to replace the spare parts every 2 to 3 months to keep the machine running at its best performance.