Made of material: The mop accessories are made from high quality materials to ensure a long service life. Easily replaceable: These accessories can be easily removed and replaced within the scope of normal maintenance, ensuring that your robot vacuum cleaner continues to operate at peak performance. Regular Replacement Recommended: To maintain peak performance, it is recommended to replace spare parts every 2-3 months to ensure the efficient operation of the sweeping robot. Compatible models: Designed for robot vacuum cleaner models 111 and 113 R113840. Note: The data are all measured manually, Please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.