Violin & Viola Body Size Gauge バイオリンとビオラのサイズを瞬時に判定 1/32バイオリンから17インチビオラまで This tool enables anyone to quickly determine the size of a Violin or Viola in a matter of seconds. Especially useful for instruments that are not labeled. One side grabs the upper edge of the body and you read what your size is accurately. Made of durable flexible non-scratching plastic.
