Using the Bosch Readyy'y crevice nozzle is easy. First, if you're using it with a Readyy'y handheld model, make sure to attach the nozzle adaptor. Then, simply connect the nozzle to your vacuum cleaner. It's great for reaching into narrow corners and crevices around your home. When using, keep in mind that although it fits standard 30.5mm pipes, you may need to check the compatibility with other brands carefully. For maintenance, after each use, remove any debris from the nozzle. You can use a small brush to clean it out. Store it in a dry place to prevent any damage. If you have any issues or questions, feel free to contact us as we have over 25 years of experience in appliance parts supply.