1?Mix detergent and warm water (or cold water if your detergent can't be added to warm water) and pour it into the washing machine. 2?Flip over the edge of the washing machine while soaking the brush head in warm water to soften and soften it for easy insertion into the washing machine. 3?Insert the brush into the inner tub at an inclined angle and then insert the brush when you hear a clicking sound. 4?Rotate the brush head to return it to the correct position, then rotate the inner tub at the same time and insert and remove the brush up and down to clean the inner tub. It is made of nylon, tough and durable, and can be used to clean air conditioners, washing machines, fans, and other appliances to clean narrow corners of dirt. Easy to use and quick to clean the dirt, please don't hesitate any more! Our professional washing machine brush is sure to meet your needs. We offer you a professional washing machine cleaning brush, which is the third generation of upgraded drum washing machine cleaning brush that can be reused many times.