Vic Firth American Custom Keyboard, Poly Ball Soft Unwrapped poly head Poly heads offer a softer, bouncier sound on xylophone and keeping with the versatility of the line, can be used on bells as well Birch handles on these mallets provide players with an increased reach without compromising the mallet's rigidity Part of Firth's most versatile and popular line of mallets Material 	: Wood ; Head Material : Plastic/Poly