Description This guitar string ferrules are perfect for string-through body building or repairing. Collar sits flush to the guitar's 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, electric guitar and other musical instruments. Features -Color:Silver -Material:Metal -Size:0.90X0.90X0.92cm/0.35X0.35X0.36in -Made of excellent and finely processed metal material, our products are durable and practical. - Fits into the back of the guitar body and locates, holds the strings and more. - Great DIY guitar parts and replacement accessories for guitar lovers, player, learners or musics bands. - Perfect for string-through body building or repairing for guitar, not easy to deform and rust. - Making your guitar easier to play and has better sound, come with guitar picks for you to use. Package list: 6 x String Ferruless