Features: Made of Plastic materials, ensuring long terms use no damage. Perfect cutting design, simple installation. Designed for 6 & 12 String acoustic guitar. The string studs come in standard sizes and are suitable for most guitar types. Great accessory for your 6 & 12 strings acoustic guitar. Specifications: Style: Pointless Plastic string nail/Colored shell Plastic string nail/Copper ring large colored shell Plastic string nail/Bleached pointless Plastic string nail/Bleached colored shell Plastic string nail/Bleached copper ring large colored shell Plastic string nail/Original color pointless Plastic string nail/Original color shell Plastic string nail/Original color copper ring large colored shell Plastic string nail Size: about 8x30mm/0.32x1.18inch Package Includes: 1pc Guitar Bridge Pin note: Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color of the item.