The PT-1578-00 is the perfect option to upgrade the nut on your twelve string guitar.  It is pre-slotted for a quick and simple install.

• Length:  1 29/32" (48.18mm)
• Width: 3/16" (4.95mm)
• Height: 5/16" (8.25mm)
• E to E:  1 5/8" (41.40mm)