Penn Squadron IV Labrax Spin The PENN Squadron IV Labrax series offers exceptional value for money and features a modern, fast blank design combined with stunning looks. The 24T carbon blanks are lightweight and have the perfect action for using sea bass lures, but the power in the lower range helps to keep the fish away from underwater structures. Equipped with ergonomically shaped high-density EVA handles and one-piece PENN Dura-Guide stainless steel guides suitable for all line types. These guides are extremely robust and durable, offering the best protection for accident-prone anglers. These rods are designed for longevity.