The Yamaha CGS102 Classical Acoustic 1/2 Guitar, with a spruce top and natural finish, is Yamaha’s smallest instrument. Its 21″ (535mm) scale length and 3-3/4″ (94-100mm) deep body provide a perfect fit for the youngest musicians. This petite size is the most difficult to produce properly, and many inexpensive “toy” guitars fill this range. But don’t let them fool you. The Yamaha CGS102 Classical Acoustic 1/2 Guitar is a legitimate musical instrument, constructed with the beautiful tonal woods and meticulous details of a full-sized Yamaha guitar.