Usage Tips:[Easy Filling] The 90-degree elbow design makes it easier for gas to flow to the small cylinders. Simply attach to your large tank and your 16oz tanks for refilling in 1 minute.[Upgraded Design] Featured with a propane ON-Off control valve, prevents gas leaks when connecting gas cylinders. You can easily control the refilling process with safe.[] Made of solid brass, rust-free and very for long time use. Leakage-free valve to assure your safety.[Quick Monitoring] Quickly check the remaining gas of your large tank to avoid the inconvenience caused by insufficient gas during the filling process.[Application] QCC1 propane refill elbow Adapter is used for filling small propane tanks from large tanks. Perfect for BBQ, camping party, heating needs and outdoor cookout.size: 14cmMaterial: brasscolour: black+brassPackage Contents:1 x Propane Refill AdapterOnly the above package content, other products are not included.Note: Light 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.