Graph Tech String Saver Acoustic Saddle Slab PS-9332-00 Constructed to transfer the right frequencies more efficiently from the string to the musical instrument and has been proven to increase the harmonic sustain. It is a 3/32" thick slab of Black TUSQ XL and can be used to fabricate just about anything. Thickness: 2.39 mm (3/32"); Length: 101.60 mm (4); Height: 12.70 mm (1/2") Model: PT-9332-00 Available at Ant Hill Music!