The Quick Click system is made from strong, durable plastic & is easy to install & remove, as the name suggests. It also comes with an air-relief valve, so that you can control air flow & reduce any vacuuming effect on your tools, stopping them from sticking on certain surfaces. The hose itself is made to be tough, too, & to hold its shape over a long usage life. Connect your tools & your extractors with complete confidence, keeping you safe & working without worry.