The Green Leaf Hand Crank Wonder Winder ends extension cord spaghetti for good! With the Wonder Winder, you'll never have to waste time untangling and coiling extension cords again. Designed for indoor or outdoor use, the Winder stores up to 150 feet of 16/3 cord, 100 feet of 14/3 cord or 75-Feet of 12/3 cord. Two twist-lock mounting plates easily attach to a wall in your shop, garage, or basement, or outside of your house—anywhere you have an outlet. A reversible handle makes winding easy and quick for either right or left handed people.