Dimensions: 44.96 x 4.88 x 8.41 mm, pre-notched. String spacing: 38 mm. Radius: 12. Suitable for many electric and acoustic guitars. Tusq is a specially manufactured material that absorbs the vibration of the string excellently and transmits it to the instrument. In contrast to natural materials such as bone or ivory, it has no irregularities in its texture and is pleasantly easy to work with.