[Simple Replacement]Simply remove the full dust bag and install the new one along the holder slot. This straightforward process makes replacement and maintenance effortless. [Tips for Use] --- In order to keep your robot running at its best, please clean and replace parts in time. If you have allergies and pets , it is recommended to replace the dust bag every 2-3 weeks. 12 Pack Replacement Vacuum Bags: Comes with 12 high-quality vacuum bags, providing a long-lasting and cost-effective solution for your cleaning needs. Each bag measures Universal Fit: Designed to fit models, including i1+, i2+, i3+, i4+ i5+i6+, i7+, i8+ j5+j6+ j8+ S9 and more. These vacuum bags are a perfect replacement for the vacuum bags. High-Quality Materials: Made from and puncture-resistant materials, these replacement vacuum bags are sturdy enough to handle all kinds of dirt, dust, debris, and pet hair. They are designed to maintain their shape and hold more dirt, ensuring a more efficient cleaning process.