The Grover Perfect nut delivers a brighter, more resonant tone to your six-string guitar. You'll appreciate the die-cast construction and 1-7/8" total length (1-5/8" Center E to Center E) that fits most guitars, allowing unimpeded string vibration for full-bodied tone. Serious players have relied on Grover tuning machines for over 50 years and the Perfect nut continues that legacy of quality and performance. Upgrading your nut can make a world of difference in how your guitar resonates and sustains, and the Perfect nut's premium design and materials will have your guitar singing.