The PENN Battle IV DX is stronger and more durable than ever before. The Battle IV DX features PENN's Hydro Armor sealing system that protects critical components no matter how harsh the conditions. The Battle IV DX is more powerful than the standard Battle IV. The Battle IV DX features brass main gears in every size, proven HT-100 carbon fiber drag system, and a Full Metal Body to deliver a reel built to withstand the force of big fish. The oversized EVA handle knobs allow you to transfer more power through the gears to your big catch on the other end of the line.