HammerHead Spearguns Heavy Duty Bungees are made tough and durable. Use them as a Heavy Duty fish fighting Front End Bungee or rig them reverse off the line release on Break-Away set-ups. Made with a special heavy duty 1/2" rubber tubing and strung with a nylon coated spectra with over 700 pounds of breaking strength. Designed for the biggest fish under the harshest most extreme conditions Manufactured in the USA by HammerHead Spearguns, from domestically sourced latex tubing and Canadian Spectra Cord.