Uroboros is one of the System 96 glass companies, and they're making smaller rods for our flameworking industry. Since it is compatible with other 96 COE glasses (Reichenbach, Kugler, Zimmerman, and Gaffer), it can be combined and worked with glass from other companies, even for furnace or fusing projects. With a wide selection of colors, Uroboros makes a great addition to the beadmaker's palette and broadens the possibilities of flameworked glass. Note that although Effetre is also 'soft glass' it's COE is 104, so it is not compatible with the Uroboros. Also, although it features 'boro' in the name, Uroboros is NOT compatible with borosilicate glass!