Patented bass bridge for 5-string bass guitars, analogous to the 3D-6. The roller bridge saddles reliably minimize string breakage while maintaining intonation and tuning stability. - 3-dimensional adjustment of string height, intonation and string spacing (with roller bridge saddles). - Heavy and precise construction for extra long sustain. - Complete with 3mm or 4mm spacer. All bridges are supplied with a 3mm baseplate and screws as standard; alternatively, they can also be ordered with a 4mm baseplate.