We delivery reduction for big quantity. Welcome to the touch with us! 1:Made of fine materials for durability. 2:Easy to correspond to varied footprints on the floor, juice residue, oil stains, etc. 3:It is more useful to alter after use, getting rid of the necessity to clean the mop. 4:As part of usual maintenance, it may be easily eliminated and replaced. 5:Fit For Xiaomi Roborock S5 MAX S50 S55 Roborock S6 S6 MAXV. Material:cloth colour:Gray Package Contents: 5 x mop material 6 x water tank filter out Only the above package content, various item will not be included. Note: Light shooting and various exhibits could cause the color of the thing in the photograph barely different from the real thing. The measurement allowed error is +/- 1-3cm.