The Ensemble Series ENS35 hard rubber keyboard mallets have a firm rubber core like the other Ensemble mallets, but are not latex covered. The hard rubber provides for great projection in ensemble settings. These mallets are ideal for use in high ranges of xylophones and glockenspiels. The rattan handles are super dependable; a quality found in all Innovative Percussion materials. The ENS10-ENS35 were designed in conjunction with Percussion Educator, Performer, and WGI Adjudicator Julie Davila.