Blisstime 6pcs Guitar Bone Bridge Pins Replacement Parts with Abalone Dot Made of genuine cattle bone with green abalone dot on the head. Length:30.8mm/1.21inch;Diameter of the head:7.9mm/0.31";Skirt /collar : 5.33mm/0.21";End of post: 3.4mm/0.13"; Length of post: 23.7mm/0.93";Dot's dimension: 3.2mm/0.13" Package content:6pcs pins Offer you a more attractive tone than other cheap plastic pins.