Spec. Material： Food Grade 18/8 Stainless Steel Size： W：13.5 cm * H： 26 cm Neck opening size： ID:33.5mm OD:41.6mm Spec. of opening mouth screw: 33.5 x 1.5 pitch Weight：1.2kg Advantages: A：Screw Cap with Silicone Rings To ensure keg remains sealed and spill-free B：Made of 18/8 stainless steel that is BPA-Free and won't rust, food grade 304 stainless steel which keeps beer flavors and fresh. C：Welded on ergonomic handle makes it easy to carry and one-handed pouring. D：The extra-large size keeps liquids extra cold for up to 24 hours. E: Can be recycled and is environmentally friendly. F: Half the size & weight of glass bottles for the same volume of liquid, perfect for camping, party, trip etc. G: Stackable design for easy storage.