set2: 15 x Dust Bag + 10 x filter Filter filters fine dust to reduce dust, pollen and other allergens from penetrating into the air you breathe It is suggested that it should be replaced every 2-3 months. Replacing the acceories regularly will also improve the cleaning performance and suction of your sweeping robot,Also can help to provide you with fresh air and healthy living environment Main purpose: The large-capacity dust bag for Proscenic M7 Pro M8 Pro Robot Vacuum Cleaner can free your hands for a month, and never have to worry about frequent replacement. The recommended replacement period is 1 month Main material: non-woven fabric material, so that you are not afraid of leakage, so that everyone can use it with peace of mind Applicable models: For Proscenic M7 Pro M8 Pro Robot Vacuum colour: black/white Material:cloth/plastic filter size: 109x48mm Type: Vacuum Cleaner Parts Dust Bag: Replacement Acceories Parts Package Contents: 15 x Dust Bag 10 x filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.