4pcs/set White Durable Nylon Ukulele String Replacement Parts for 21" 23" 26" String Musical Instrument Color: White Material: NylonSize: 1Package Includes: 1 String (4pcs) Note: 4 sets of Ukulele strings are not included Package contents or above, other products. Not included here. Note: The color and size of the actual item may vary slightly from the color and size on the website, depending on the lighting and your display. The margin of error for the measurement is 1-3.