Used for mouth-blowing ornaments, spheres, and other round shapes. The clear glass can easily be accentuated by dipping the heated up cylinder into frit or painted after lampworking has been finished. Perfect for glass artists who are interested in beginning lampworking.
Glaskolbens can be colored using 90 COE frit or stringer, inside or outside of the clear cylinder. To adorn the outside, roll the hot cylinder in frit before blowing or heat up stringer to curl around the hot cylinder in the flame. Both frit and stringer can also be dropped inside of the Glaskolben during the working process to achieve stunning looks.
Tested compatible with Uroboros and Bullseye 90 COE glass frit and powders ONLY. Using any other COE may cause stress or fracture.
Bonus: Ornament caps are included.