I purchased this for a part replacement for my full-acoustic guitar, but I hardly used it, just for testing. It's almost unused. GRAPHTECH PS-7552-G0 The following is the manufacturer's description: ~~~~ This is a bridge for archtop guitars that uses ResoMax Alloy and String Saver saddles. The movement of the strings creates a thin Teflon film on the saddle, which acts as a lubricant and prevents string breakage. It also produces a deep and sharp sound like a vintage steel saddle, and achieves long sustain. The beautiful design is also attractive. It's a Low Profile, lower than standard. ---- Gibson gibson Full-acoustic guitar