Using this Volta T7 U7440 vacuum cleaner hose is easy. First, make sure your vacuum cleaner is turned off. Then, insert the end with a 39.7mm diameter into the machine. You'll see a small oval push - to - release button which helps with a secure fit. For the other end, simply attach the bent piece with a 31mm diameter into a standard 32mm pipe. When using the hose, avoid sharp bends or kinks as this can reduce suction power. After each use, detach the hose and give it a quick shake to remove any loose dirt or debris. Every few months, you can wash the hose with mild soap and water to keep it clean and functioning well. And always store it in a dry place when not in use.