Durable plastic disk designed to safely stack one Sixtel (1/6) keg on top of another Sixtel (1/6) keg. The top keg can be tapped and the bottom keg is the backup for when the top keg runs empty or you can safely stack 2 empty Sixtel kegs. Inexpensive way to double the floor space in a walk-in cooler and make storing & stacking Sixtel kegs easier and safer for employees and distributors. These Keg Stackers are designed to stack only Sixtel (Torpedo) kegs (1/6 barrel = 5.16 gallons.) Search Amazon for 'Half-Barrel Keg Stackers' for Keg Stackers designed to stack half-barrel kegs (the most common size keg.) Durable plastic disk designed to safely stack one Sixtel (1/6) keg on top of another Sixtel (1/6) keg. The top keg can be tapped and the bottom keg is the backup for when the top keg runs empty or you can safely stack 2 empty Sixtel kegs. Inexpensive way to double the floor space in a walk-in cooler and make storing & stacking Sixtel kegs easier and safer for employees and distributors. These Keg Stackers are designed to stack only Sixtel (Torpedo) kegs (1/6 barrel = 5.16 gallons.) Search Amazon for 'Half-Barrel Keg Stackers' for Keg Stackers designed to stack half-barrel kegs (the most common size keg.)