1. Bone bridge saddle and nut are made of real cattle bone. The bone has minimal porosity and a great appearance. Its density and minimal porosity contribute to improved intonation and clarity. 2. 6pcs bridge pins are made of brass with green abalone dot and brass circle on the head. These pins enhance the visual appeal of your guitar, and due to their density and rigidity, they provide better vibrational transfer through the bridge compared to plastic, improving sound quality. 3. Fits most standard acoustic guitars. These bridge pins are not only functional but also feature an elegant, artistic design. 4. If you haven't tried brass bridge pins, you may not realize the acoustic benefits. Experience an improvement in sound performance. 5. These bridge pins can replace lost or damaged ones and serve as a high-quality accessory for your acoustic guitar. Bone Nut Size: 43mm x 6mm x 8.5mm Bone Saddle Size: 72mm x 3mm x 9mm Bridge Pins: Total Length: 30mm, Top Diameter: 7.6mm, Bottom Diameter: 4.5mm Color: Gold + White Material: Brass + Bovine Bone + Plastic Package Contents: 6 x Bridge Pins 1 x Nut 1 x Saddle 1 x Pin Puller Only the above package content is included; other items are not part of the sale. Note: Lighting and monitor settings may cause slight color variations between the product and the image. Measurement may vary by +/- 1-3cm.