Multiple , could and clean ceiling. Easy to install and easy to use. Vacuum cleaner extension tube,Insert the small head into the other straight tube or plug into brush can extend the working length, easy to handle a variety of difficult to clean ground, such as high bookshelf, ceiling dust, and corners that are not easy to reach. Reach out and the easily, do the housework so easy. Adapting model: suitable for vacuum cleaner,also compatible with , , and other household vacuum cleaners and central vacuum cleaners that requering 1-1/4inch inner hose end.