A Hair Stacker is used to align the tips of hair cut from a hide. The double hair stacker has an aluminum base and 2 brass barrels. One is 1 3/4 long with an inside diameter of about 1/2". The other brass barrel is 1 1/2" long with an inside diameter of just over 1/4".
These barrels are smooth to allow the hair to slide easily. The aluminum base has a rubber pad to protect the table.