Promark Bill Molenhof PBM Vibraphone Mallet PBM mallets feature a cord wrap over a rubber core on a rattan handle Length: 15 1/4" PBM mallets are recommended for combo, solo, or larger ensemble work and are great for either two or four-mallet use The PBM is a Medium Hard mallet with a rubber core wrapped with cord to produce a nice full tone with a warm articulation All Promark drumsticks are designed and manufactured in the USA