Biohazard Rotacrylic Pen Blank Casting Supplies Brush Blank - 1 5/8"

Brush Blank - 1 5/8" in diameter x 2 5/8"

Discover the vibrant colors and exceptional quality of J

Sold as a set of 5 (5 upper and 5 lower tubes)

Bushings: Victorian Rollerball and Fountain Pen Bushings (PKVICRBU — Penn State Industries)

Biohazard Rotacrylic Pen Blank Casting Supplies Brush Blank - 1 5/8"Biohazard Rotacrylic Pen Blanks. Biohazard Sign Rotacrylic Blank. This Biohazard sign was developed by Charles Baldwin of the Dow Chemical Company in 1966 in order to label (Dow's) biomaterials that might carry a significant health risk. It has since become a universally adopted sign and a good way to warn your co workers to keep their fingers off of your handmade pen! This amazing piece of workmanship involved many hours of design cutting on a CNC,