General description Replacement Parts Kit for J20 Robot Vacuum Cleaner includes essential accessories to maintain optimal performance. This kit is designed to enhance the cleaning efficiency of your vacuum cleaner, ensuring it reaches every corner for a thorough clean. Technical specifications Material: Plastic Package Contents: 1 roller brush, 4 side brushes, 4 HEPA filters, 3 dust bags Measurement allowed error: +/- 1-3 cm Usage Replace spare parts every 2 to 3 months for best performance. Filters fine dust to reduce allergens such as pollen from the air. Uniquely designed brushes with rubber treads adapt to different floor surfaces. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.