Since 1995, Slug's patented BATTER BADGE® ARMOURPHRAGM™ designs have been made for a variety of drums featuring protective sound enhancing shapes with visually exciting graphics. Specially designed models for bass, toms and snare drums protect drumheads without muffling the drumhead. Batter Badges create new sound options and provide tonal control, plus they save time and money because of less frequently needed drumhead changes. A Batter Badge will extend your drumhead's life, protecting the "sweet spot" where you place it. Patented features of venting and "Power-Flex" arms are exclusive to Slug Batter Badge designs. The clear polycarbonate film used on the Badges is the same material used for bullet proof glass. Batter Badges range in thickness from .007" to .020" depending on the model and all have permanent high strength adhesive backing.