EVANS BD20GB4 [EQ4 Clear 20 / Bass Drum] [1ply, 10mil + 10mil ring] Jo-Ral ●Size diameter / 70

●Size diameter / 70

"They're easy to install

which gently but firmly protects the instrument

and beautiful tone

and continued to improve them

EVANS BD20GB4 [EQ4 Clear 20 / Bass Drum] [1ply, 10mil + 10mil ring] Jo-Ral ●Size diameter / 70We are a drum head manufacturer that produces highly uniform drum heads using innovative ideas and computer control. Finish: Clear Thickness: 10mil + 10mil ring Size: 20 inches It features a specially designed 10mil film, single ply, and an internal harmonic control ring with a width optimized for head sizes from 18 to 26. This gives you a balanced, clear bass drum sound without sacrificing bass.