The 10 liter barrel is approximately 11″ from head to head and 9″ in diameter. The 10 liter barrel is about 2 1/2 gallons. The 10 liter barrel will age at a rate of about 4-5 times faster than a full size barrel like they use in the distilleries. The 10 liter is very popular with our upscale bars, restaurants or individuals that have a nice bar at home that they want to display a beautiful barrel that will also be aging their drink.? It is a barrel that will continue to age your liquor for years to come. Most people just sip and share from the barrel and then add a bit more liquor to it as the level goes down. We have one at home for over 3 years now and it ages like a champ.? It is full with some Irish Whisky flavored alcohol made with vodka.? Everyone loves the flavor and it is cheap to make too.? Now if you really prefer to show off then you could step up to the 20 liter oak barrel.