This listing is for Bullseye fiber optics 4 x 1.5" pieces of .060 fiber optics. Please message us with the colors you select, or we will pick 4 of our most popular colors for you. Choices are red, orange, amber, green, dk blue & uv bright blue.  Our uv bright blue fiber optics require natural or artificial uv to display the Blue color. If viewed indoors, without the presence of uv, the fiber optic rods will appear clear.