• Mallet type: Viennese hard felt mallets 
  
• Hardness: medium hard 
  
• Material handle: Hornbeam/ thin lacquered 
  
• Length handle (without head): 34.2 cm 
  
• Diameter handle (tip): 13 mm 
  
• Diameter mallet head: 32 mm 
  
• Height mallet head: 12 mm 
  
• Weight/ piece: 35 -37 g
  
• Color coding: blue 
  
• Handmade in Austria
  

The Viennese hard felt mallet (also called the Viennese microphone mallet) is an invention by Gerald Fromme. Insiders also call this lower-priced alternative to the Viennese flannel mallet "micro", since in the recording process, direct miking of the timpani sound produced with this mallet material is particularly transparent yet full-toned in reproduction.

In the concert hall, this mallet sounds slim and transparent, though not thin. The "micro" works extremely well on plastic and calfskin heads.

Through a special fulling process, the two slightly softer models WM4 and WM6 are noted for their very good articulation in the lower dynamic range and a smooth, elegant sound in the middle to high dynamic range – thus a classic "two-tone" mallet.