Chunshop Guitar String Cutter Fret Nipper Guitar Bridge Pins Puller Luthier Tool New Material: Plastic plated steel Portable and easy use Fot to Martin, Taylor or any brand acoustic guitar Guitar bone saddle: 72mmX3mmX8.5mm,Guitar bone Nut: 43mmX6mmx8.5mm Guitar bone Pins: Overall length is 1.175" (29.75mm) Slot width is 0.075" (1.93mm)