Fossilized Ivory Bridge Pins size 2CMartin FI Bridge Pins size 2C If you own a new Martin guitar, chances are the bridge pins are installed so that the head of the pin sticks up about " above the bridge. Our Size 2A pins will fit the same way. Size 2C is the same degree of taper but with a reduced shaft diameter (0. 215 at the top of the shaft) so that they will sit farther down in the bridge. These are size 2C with a Paua Abalone pearl Dots in Fossilized Ivory