Create texture and dimension with one bead with these copper cat's eye cube beads! Their warm caramel coloring goes great with red and brown tones, and their 6mm size is best for necklaces and bracelets. Use these beads with rounded pearls to create a twisted design with wonderful colors! Cat's eye beads, otherwise known as fiber optic beads, feature a thin band of light that resemble a cat's eye, giving them their name. These beads are sold on 16-inch strands.