These are great accessories for guitar enthusiasts. The guitar head buttons are in concise and simple design, elegant and beautiful, professional for your guitar. Made of acrylic materials, it is sturdy and safe, which can meet your needs for guitar tuning. Features - Color: Black -Material:Acrylic - Size: 1.80X1.70X0.70cm/0.71X0.67X0.28in - These guitar head buttons are made of acrylic material, safe and durable, which can withstand long-term use. - Perfect for guitar enthusiasts, these tuners can better meet their demands. Elegant look and color, nice decoration for your guitar head. Great button for standard acoustic and electric guitar tuning pegs. - Concise and classic design with the nice color, reliable and can also decorate very well. - workmanship, no burrs, nice shape, will bring you wonderful use, reliable and practical. - Easy to install, strong, durable, with stable characteristics, high reliability to serve you well. Package list: 18 x white ferrules 18 x black ferrules 18 x screws 18 x Guitar Acrylic Guitar Tuners