Hello again from GeetarGizmos. We are happy to offer our pure Brass Nut for the Gibson T-Bird bass that uses the long 1.72" nut.  Brass adds a rich, mellow tone to your playing.  Far superior to the dull thud of a plastic nut.  And it's tough as nails - easily handles the rigors of a busy bass player.   

Our nut is handmade in our Michigan shop.  Slotted for perfect string placement.  1.72" long, .37" tall, .19" thick.  Shipped immediately via First Class Mail with full tracking.

Also available in Pure Bone!