Bullseye frits are made from crushed, screened, and magnetically cleaned Bullseye compatible sheet glass. Use frit in frit tinting, kiln-casting and related techniques, or add decorative splashes of color in fusing projects. Fine grain frit ranges in size from 0.2 to 1.2mm, medium grain frit ranges in size from 1.2 to 2.7mm, and coarse grain frit ranges in size from 2.7 to 5.2mm. Extra large frit, available in clear only, ranges in size from 5.2 to 30mm.Frit comes in reusable wide mouth jars.