Unique Bargains 1/2" Male Thread 10mm Air Water Fuel Hose Brass Barb Fitting AdapterCategory: Male Hose Thread AdapterThis is a good quality air fitting kit. Male thread, Brass construction for greater durability, ensure reliable connection. The Barbed fitting allows for quick and easy push on connection. Should be used with your flexible tubing. For CALIFORNIA residents only: WARNING: This product contains chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm.Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in a product. With Unique Bargains' products, the exposure to these chemicals may be of no significant risk to you, but out of caution, we have elected to place this warning on our site to make sure our customers are informed.You can find more infomation at http://www.oehha.ca.gov/proposition-65/about-proposition-65.