33 COE glass rod by Northstar 

NS-076 Onyx is the smoothest most saturated black in the Norsthar palette. It is well suited for stringer applications and blown work. It is a green based black and in certain lights it has a slight green tint. Onyx can be worked hot and long without boiling issues and it is not sensitive to reduction. For best results keep it in a neutral flame.

Diameter: 3/16" - 5/16" (5mm-8mm)

Length: Approximately 20" (51cm)

Rods sold by 1/4 lb

*Please note: our totals may vary slightly.  We charge for exact weight shipped and will try to ship exactly what you order, but the weight may vary slightly.