This set of guitar string ferrules are perfect for string-through body building or repairing. sits flush to the guitars surface. It can help to make your guitar easier to play and make a better sound. Suitable for professional and personal use. Great adjustment string caps for guitar, guitar and other musical instruments. Features -Material: Chromes alloy -Size: About 1.50X1.00X1.00cm/0.59X0.39X0.39inch. -Note: Guitar pick is random color. -Make the strings vibrate more effectively, improve the resonance and increase the delay, make the sound stronger. - guitar string ferrules provide the best performance for you, easy to store and carry. - and practical design with beautiful appearance,add a elegance to your guitar. -Made of high- and environmental-friendly material, durable and practical. -Fits into the back of the guitar body and locates, holds the strings and more. Package list: 12 x Guitar String Caps 2 x Guitar Picks