Stock your studio with a wealth of colors. Bullseye frits are made from crushed, screened and magnetically cleaned Bullseye Compatible sheet glass. Assortment includes twelve 5 oz. jars of transparent and opalescent frit in a combination of fine and medium grits. A great introduction to an essential material Projects shown by artist Janet Schrader. From "The Art of Fusing Pictures in Glass" book #6688.