These heads were designed to hold up against even the heaviest of hitters. They features thicker plies for added life and durability. The Evans EMAD Heavyweight series features two plies of 10mil film which provide maximum durability while maintaining the same punchy attack and wide dynamic range you ve come to know and love from the EMAD series. Just like all of the other heads in the EMAD line the Heavyweight comes with two interchangeable damping rings that help maximize attack and low-end. The industry standard Externally Mounted Adjustable Damping (EMAD) system allows you to make quick adjustments on the fly without having to remove the head or reaching inside the drum. In addition you will also get a 14 Heavyweight styled snare drumhead. This head also features two 10mil plies and follows the power center reverse dot design for added strength and durability. Get your Evans Heavyweight Knockout Pack today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.