For use with 60 gallon neutral barrels, the Oak Barrel Replica is perfect for imparting 100% new barrel flavors without replacing your barrel heads. 30 staves are tethered into 10 sections, allowing modification and complete control - if you want 50% of new barrel extraction spread over two 30 gallon barrels, simply cut the Replica in half. The contact time is 3 months minimum and up to 18 months of useful life. Toast level is Medium Plus. Comes with eye hook for insertion to a bung. Stavin recommends a wood or silicone bung.