100%Made of high-quality materials, environmental friendly materials, soft and to use. The parts have a longer life cycle and better cleaning effect, which protects the robot from excessive wear and reduces the service life. Made of high quality material, more . Improved overall performance of the vacuum cleaner after installation. Depending on the frequency of use, it is recommended to replace spare parts every 2 to 3 months to maintain the best performance of the machine. Colour:As Shown Material:plastic Package Contents: 1 x Water tank 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.