Features: This open geared string tuner can adjust the string tune easily and quickly. Make of Zincs alloy, light weight, antideform, can be used for a long terms. You can use it on the vintage bass, electric bass and more, easy to install on the bass. It is easy to use, smooth, you can use it comfortably. It can be a good replacement for the worn or damaged tuning pegs, you can use it to restore the correct tone of the strings. Specifications: Materials: Zincs alloy Color: Silver/Black Size: as shown in the picture Package Includes: 4pcs Tunings Pegs 4pcs Ferrules 4pcs Nut 4pcs Screws 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.