The Slug Percussion L3D2SSB Black Power Head Bass Drum Beater Features Dual Axis Centering, allowing the beater to rotate up and down, and from side to side; making total contact with the head during play. This produces maximum sound with less effort. Stainless steel shaft. Fits all major brands of pedals. Limited lifetime warranty on shaft bending or breakage, the beater head is not covered by warranty.