These awesome new blanks are an idea that I have collaborated on with knife artist, Garrett Finney. Garrett has used these in many of his knives and now they are available for pens. These are actual shark vertebrae that have been put in a mold and filled with colored resin under about 80psi of pressure. The result is a very unique pattern that I have never before seen on a pen.
I would recommend these blanks for more of an advanced turner. Even with the high pressure there may be an occasional void or bubble down deep in the vertebrae that will need to be filled. But with the pattern, all the ones I have done turned out beautifully. Some of the blanks have some excess vertebrae at the end of the resin, but all should have approximately 5" worth of full blank unless specified otherwise. Also, the vertebrae pattern will change depending on the size (diameter) of pen you are making. Thinner pens have a wider space between vertebrae sections. I would recommend a medium-large sized pen for best results.
NOTE: These blanks have a hole drilled down the center of the vertebrae prior to pouring the resin which helps the resin get into more of the voids/air pockets. For best results use this hole as your center for drilling the hole for your tubes. Because of the curvature of the vertebrae, the outer resin may not be perfectly centered with the vertebrae so please keep that in mind when drilling your tube holes.
-Please feel free to email me with any questions you have. Thanks!