Extra Durable Construction. Computer-aided Design. Life-Like Swimming Action. Works at Various Trolling Speeds. Can Be Trolled up to 12 Knots! Holographic Vacume Metalization Finish. Realistic Over-sized 3D Eyes. Integral Gill Plates + Etched Lateral Line. Through Wire Construction. Extra Strong. Hydro Magnum - No 1 Lure For Tuna!