SwitchBot K10+ Paper Bag Conversion Part An adapter that allows the use of standard general vacuum cleaner paper bags with the robot vacuum cleaner's dedicated paper bag. This is exclusively for the "K10+" model, and it is not recommended for other types of SwitchBot vacuums as some internal parts may interfere with installation. The paper bags are a common type among various manufacturers, and this adapter is designed to use them. They can be used if they are square-shaped (see the last photo). This is a handmade item created with a 3D printer. Please be aware that it may have burrs, stringing, and layer lines characteristic of 3D printing. We have removed them as much as possible. - Anonymous shipping