(Fiber Optic) Cats Eye Beads 8mm Fiber Optic Cats Eye Beads Grade “A” Strands Cat’s Eye beads are made by fusing quartz fibers into the shape of a bead. They have a beautiful “Eye” that changes as it is viewed in different light. Our Beads are Grade “A” and have a beautiful luster and shine that will add beauty and brilliance to any beading project. These are the 8mm strands, there are about 50 beads to every strand. You may combine any color and size of cat’s eye beads for quantity discounts!