Spearit Mini Shockcord / Bungee with Snap Swivel for Speargun Line 400 lb tensile strength braided Dupont Kevlar core line 320lb all stainless Mighty Mini coastlock snap swivel by American Fishing Wire Thick walled 3/8" diameter rubber latex tubing by Kent Elastomer of Ohio Designed for shorter spearguns. The 4 inches of shock absorbing stretch allows for the use of lighter shooting line to stretch the range of your hole gun.