SODIAL(R) 3pcs Stainless Steel Finger Guitar Pick Slide Guitar Banjo Ukulele 3.1x1.6cm It's very hard and will wear well and can be adjusted. Finger picks can be quickly and effectively to enhance the bass and guitar playing. Its unique construction gives great tone with durability and comfort. They come in just one size but you can bend them to fit your fingers and your style of playing. Ring Shape Nail Plectra For Slide Guitar Banjo Ukulele.