General description Dust bags for the 2299 Ultra Robot Vacuum are made of high-quality nonwoven materials, ensuring effective dust collection and maintenance of your vacuum's performance. It is recommended to replace these dust bags every 2 to 3 months for optimal operation. Technical specifications Material: Nonwoven Package Contents: 10 dust bags Measurement allowed error: +/- 1-3 cm 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.