The Bone and Horn Tubes are of the same superior quality as the regular hairpipe we carry. Unlike the hairpipe, the tubes are not tapered at the ends. The hole runs lengthwise down the tube. These are available in two styles: regular (-TU) and ultra thin (-TT). Both styles are one inch in length and are sold by the hundred. The outside diameter is ~1/4" for R-125-1.0-TU and ~1/16" for R-125-1.0-TT.
To make antiqued bone hairpipe, just put the hairpipe in a bowl, boil up a pot of tea, pour the tea on the hairpipe and let stand for a few minutes. Drain the tea. Dry the hairpipe.