THEY NOT DAMAGE YOUR CPAP MACHINE: You paid good money for your CPAP machine and we to help you investment. These cleaning are made with bristles gently clean exterior and interior areas of the tubing. YOU'RE TWO CONVENIENT BRUSHES: We cleaning your CPAP machine an absolute breeze. Each order includes a 7-inch and 7-foot scrub brush. The long 7-foot scrub brush allows you to clean the tube from both ends. THE TO CLEAN YOUR CPAP MACHINE: Use these flexible pipe cleaner brushes to effectively clean out all of the junk builds up in your CPA tube like germs and . Designed to fit standard 22mm tubing. 7 FOOT BRUSH FOLDS TO A SIZE: The space-saving 7-foot can be folded into a size when you're done using it for your . it off and it in a plastic bag .