These springs are a 5 leaf pack with anti-friction pads and center leaf spacer plates between each leaf. This design significantly decreases leaf pack internal friction. These springs are designed to give 3" of lift and are also set up to give the max amount of compression travel before the shackle is limited by the rear portion of the body. This allows the springs to flatten out as much as possible, which translates to increased wheel travel. These are designed to flex, but can still hold up and handle your load of gear.