4pcs nylon Ukulele string Fits for Ukulele Each string of different diameter and is labeled for proper placement Diameter: 4th: 0.63mm; 3rd: 0.95mm; 2nd: 0.76mm; 1st: 0.61mm Material: Nylon This 4pcs/set nylon Ukulele string can be used to replace the strings on your old Ukulele. Each string is of different diameter and is conveniently labeled to ensure proper placement. Made of solid nylon, these 4pcs Ukulele string are great accessory for Ukulele lovers. Total Length: Approx. 25 inch / 64 cm Color: White Package Includes:4 x Nylon Ukulele string Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.