From the product description, check product page for current description, price and availability:

• 1.Include: Ball Lock Gas Disconnect with Check Valve MFL (1 PCS), Swivel Nuts 5/16”, 5ft PVC Gas Hose(1 PCS), Free Hose Clamps(2 PCS)
• 2.Material: Plastic for Ball Lock Disconnects, Stainless Steel Material for Swivel Nuts and Clamps , PVC Plastic for Hose.
• 3.Update function: The Check Valve Ball Lock Disconnect stops any liquid running back up the gas post and into the regulator which will ruin the internal mechanisms;
• 4.Widely Use: The Ball Lock Keg Fitting is for most Cornelius Keg, Pepsi Keg, and 7-UP tanks, dispense craft cocktails, soda, and other beverages from your existing keg;

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