The same engineering and experience used in developing offshore fishing products have been applied to the 450-PTH spinning reel drive. It generates over 11 lbs. of pulling power to land even the hardest fighting fish. Attaches to the side of a standard Penn 4500SS, 5500SS, 450SSg, or 550SSg Spinfisher spinning reel. Perfectly balanced model is great for women, children, and senior anglers. Does not include spinning reel or battery pack.