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 16 pcs 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 16 pcs Ukulele string are great accessory for Ukulele lovers. Total Length: Approx. 25 inch / 64 cm Color: White Package Includes:16 x Nylon Ukulele string Only the above package content, other products are not included. Note: Light reflection 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.