The PT-1204-00 is the perfect option to upgrade the nut on your Fender Precision style bass guitar. It is pre-slotted making installation quick and simple. Black TUSQ XL is engineered from the same material as TUSQ and is impregnated with PTFE which is five times more slippery than graphite. It has all the tonal benefits of TUSQ, bringing out the hidden harmonics of your guitar all while drastically improving tuning performance. Black TUSQ XL is consistent from piece to piece, and within each piece, to offer you harmonically rich tones without the problems associated with natural materials. Dimensions: 41.91mm x 3.17mm x 4.75mm. E to e: 31.75mm.