The water tank can clean the floor and cooperate with the vacuum cleaner to achieve a better cleaning effect. When in use, the water tank can be filled with water, and the water volume should not overflow beyond the silicone ring. After installation, improve the overall performance of your vacuum cleaner. The cleaner is more efficient and cleaner. Soft and fine fiber mop, effectively cleans the floor, cleans the floor with or without water, perfect for all hard floors. Compatibility: Dyson V7 V8 V10 V11 V6 DC58/59/62. Package Contents: 1 Water Tank, 6 Mops