EFFORTLESS POWER: COMPOUND X makes this band 20% easier to stretch with no loss of power. Giving you smoother loading without sacrificing shot energy. Reduces hand fatigue and spend more time diving, not loading. SUPERIOR PERFORMANCE: 5/8in (16mm) diameter bands with an unmatched power curve that delivers increasing force as you stretch. Our unique Nitro Rubber formulation and manufacturing process ensure maximum strength. LONG-LASTING DURABILITY: Special anti-oxidants protect your bands against sun damage, extending their lifespan for reliable use. STAINLESS STEEL WISHBONE: Stainless Steel wishbone ensures bullet-proof durability and positive spearshaft lock-in. For use with spearshafts that have notches. AMERICAN-MADE: For over 50 years JBL has been producing top-notch spearfishing equipment. We’re proud to offer high-quality spearfishing gear built in the USA from start to finish. PERFECT FIT SIZING: Replacement band for JBL 38 Special (4M55), Legacy 38 Special XHD (4D38XHD) spearguns. Recommended use for spearguns that use 16 X 5/8in (16mm) bands. See our sizing chart to find out what Nitro Bands are recommended for your JBL speargun and find the perfect fit.