Our Waverly Dark Tortoise Bridge Pins are a remarkable simulation of natural tortoiseshell. Our specially blended dark tortoise material makes a beautiful addition to a fine guitar. Light passes through, and it looks amazingly like protected hawksbill turtle shell. Better bridge pins: machined, never molded. Our dark tortoise bridge pins, endpins and strap buttons are made of Galalith, a dense and durable casein-based material used in vintage jewelry. There are none of the mold lines or distortion common to plastic parts. These pins work perfectly. They're the nicest gift you can buy your favorite guitar! Bridge pin specs: Overall length: 1.25" (31.75mm) Widest diameter (above collar): .320" (8.13mm) Shaft length: 1" (25.40mm) Shaft taper: 5-degree taper Shaft diameter just under collar: .220" (5.59mm) Shaft diameter at bottom of pin: .133" (3.38mm) Sold in sets of 6.