TUSQ XL by Graph Tech 3/16" Nut slab PQL-4187-00

The 4187-00 is a 3/16" thick block or slab.
It can be used to make a nut, a small saddle, or just about anything you can imagine.

Measurements
Length:  2.5”  /  63.5mm
Width:  0.187”  /  4.75mm
Height:  0.437”  /  11.1