Features: Easyly to install, sturdy and durable, suitable for various guitars and ukulele models. Silver horn mouth, stylish and beautiful. Rusts proof material ensures long-terms use. Suitable for all guitar and ukulele enthusiasts, from beginners to professional performers. Suitable for various occasion such as home practice, stage performances, and concerts. Specifications: Color:Five Choices Dimension:12.5×12.5mm/0.49×0.49in 12.5×9.9×9mm/0.49×0.38×0.35in 15.3×15.3mm/0.6×0.6in 15.3×10.9×10mm/0.6×0.42×0.39in Component:metal Package Includes: 2pcs Guitar Strap Buttons 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.