Friction Mallet Set: 70 mm Ollihess & Acoustic Percussion PairThis listing includes one 70 mm Ollihess Friction Mallet and a pair of Acoustic Percussion Flumis. We know it can be hard to find the best friction mallets for your gongs, so we've put together some of our favorites for sound therapists, spiritual healers, percussionists, and general gongists who want to make whale sounds with their gongs. Ollihess Rubber Lava Friction Gong Mallets are designed specially to avoid leaving residue, marks, or damage on