The TUF-Line HeviCore is a braided fishing line constructed around a high density core than is more susceptible to sinking. The dense core of the line counteracts braided line's inherent floating nature and therefore enables fishermen to get lures and baits deeper and keep them there. Braided around a high-density core, HeviCore overcomes Spectra fiber's buoyancy and maintains a direct line to subsurface lures. Unique integrated core design does not reduce Spectra fiber content of the line, maintaining the full strength and abrasion resistance anglers demand. We offer the 150 yard spool of the TUF-Line HeviCore in four line sizes: 30, 50, 65 and 80lb in a green color.