The Mike Balter Pro Vibe Series are one of the most popular series of vibraphone mallets on the market today, featuring a variety of hardnesses for any situation. The B22R medium hard green cord mallets feature a heavy, round core wrapped in medium hard cord that give these mallets lots of articulation with a big sound. Flexible rattan shafts give durability to the B22Rs, making them a popular choice for solo performance, as well as percussion ensembles!