Features: Precisions engineered stainless steel guitar string lock screws ensures lasting tuning stability and corrosions resistance, perfect for musicians demanding reliability performances during intense playing. The innovative notched design allows simple installation, streamlining string changes while maintaining secure grip to prevent slippage across various guitar models. Ideal for professional, studio musicians, and dedicated hobbyists who require swifts hardware adjustments between performances or practice. Performs flawlessly during live concerts, and extended rehearsals where consistent string tension and quick setup are critical. Crafted from recyclable stainless steel, these durability guitar part combine environmental responsibility with stage ready durability for performers. Specifications: Color:Two Choices Dimension:3.30x0.35cm/1.3×0.14in 2.7cm/1.06in Component:Stainless steel Package Includes: 12pcs Guitar string lock screws note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.