Brand , high-quality materials, well crafted, durable, and highly compatible with the equipment. Clean accessories keep your home robot performing at its best. As part of daily maintenance, the accessory content is easy to disassemble and replace. Simultaneously reduce the infiltration of dust, pollen, and other into the air you breathe. In order to achieve the best cleaning and filtering effect, cleaning accessories should be replaced every 2-3 months according to the frequency of use. The function of the sweeping robot filter screen is to filter the dust, dirt, and other impurities inhaled by the sweeping robot, in order to maintain the cleanliness and normal operation of the robot. The filter screen can also prevent dust and dirt from entering the robot's motor and other components, Thereby extending the lifespan of the robot Material: plastic colour: As shown Package Contents: 1 x water tank 4 x 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.