Features 1、Gear Ratio: 1:18. It is very easy to match with your guitar and has a good decorative effect 2、Smoothly Appearance: High quality materials, durable, give you a perfect experience. Has exquisite and smoothly appearance 3、Scope of Application: Guitar with appropriate size. Two colors match,decorate your guitar 4、Easy to Install: Easy to tighten and loosen, and the appearance is also very delicate 5、Stable and Durable: The string tuning key adopts metal structure, rust proof, anti corrosion, high performance, stable and durable Specifications: Item Type: Guitar Tuning Key Material: Metal Color: Gold Silver Size: Approx. 20 x 41 x 15.5 x 24.5 x 33.5mm / 0.8 x 1.6 x 0.6 x 1 x 1.3in Approx. 8 x 8.1 x 11.2mm / 0.3 x 0.31 x 0.44in Approx. 11.2 x 6.1mm / 0.44 x 0.24in Approx. 6mm / 0.24in Approx. 21mm-22mm / 0.83in-0.87in Approx. 27mm-28mm / 1in-1.1in Package List 6 x Guitar Tuning Key 12 x Screw 6 x Ferrule