REFERENCE QUALITY OPTICAL DIGITAL CABLE The Wireworld SuperNova Toslink Glass Optical is a high-quality digital audio cable. It utilizes 338 Borosilicate glass fiber optic conductors. The superior glass formulation and micro-polished ends provide improved clarity and dynamics that will thrill the most sophisticated listeners. DESIGN338 Strands CONDUCTORSBorosilicate Glass SHIPPING: The shipping weight of the WireWorld Supernova Toslink is 1.0 lb. Shipment by Ground/Insured is FREE if your delivery addresses is within the 48 continental states. If your delivery address is in Alaska, Hawaii, Canada or other location outside of the USA, please call (480-607-2277) or email [email protected] to determine the shipping cost and to place your order. Duties, taxes and fees on shipments to destinations outside of the USA are NOT included in the price.