Made of high-quality materials, more Efficient Cleaning-The reusable mopping pad compatible with Combo j7+ automatically pre-weting with a cleaning solution for a better cleaning effect. As part of normal maintenance, it can be easily removed and replaced It is best to replace spare parts every 1 to 3 months to keep the machine running at its best performance Compatible with for Roombo Combo J7+ Colour:As Shown Material:cloth Type:B:Mop Cloth+filter Package Contents: 2x Mop Cloth replacement 4x filter 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.