2 Pair Ball Lock MFL Gas&Liquid Beer for Quick Disconnects Set Ball Lock Disconnect for Beer Out, Ball Lock Gas Disconnect for Gas In; Material: High-quality Material for Ball Lock Quick Disconnect, Ball Lock MFL can connect Swivel Nut and Beer Faucet for Homebrewing system; Use: The Gas Coupler is for Cornelius , for , and for 7-UP tanks; Connect:Ball Lock Disconnect Mfl threads are nice for quick changing lines or adding other equipment without cutting your lines; Color: White & Black Material: Plastic+Metal Package Contents: 2Pair x Ball Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.