Applicable Model: Microfiber replacement mop compatible with for wet and dry robot vacuum cleaner, 3115, 2859 Series. Compare part number 1624985 and 1624768. Function: Wet mop pads are used to clean dust and dirt on hard floors,such as footprints, juice residues, oil stains, etc. and dry mop pads are used to polish hard floors and for slight messes. Applicable Floor: the mop pads are designed for all sealed hard floors, such as wooden floors, ceramic tiles, composite floors, and marble floors. Reuse: washable, the mop pad is washed separately in warm water. Replacing old and dirty mop pads helps to improve the cleaning performance of the vacuum cleaner. Colour: White Material: cloth Package Contents: 9 x frosted cloth 9 x soft cloth Notice: The middle hole on the pads to align with the driver when using. Only the above package content, other products are not included. Note: Light reflection 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.