The 3 Indiana blades, the aluminum pipe, and the spacing between the blades. If any of these were to be compromised, the BM Triple Spin would not have been possible.

The blade in the middle interferes with the blades in front and behind, causing the lure to rotate to the right, left, or stop, changing its action on its own, making the flashing irregular and triggering the lure. The rubbing sound of the aluminum pipes also stimulates the bass.

It's easy to use. When it hits the water, make sure to let it sink to the bottom and then retrieve it so that it rises gently up to where you are. The black and gunmetal color is very effective for sight fishing.