KickFire Diabolos Blue Steel Diabolo String (Nylon) | Chinese YoYo Replacement String | Set of 5 Strings | 6 Feet Each | High Speed, Performance String for all Types of Diabolos Strong as Steel! 5 super smooth, slick strings for superior spin times. Resists fraying. 6 ft each Bright blue color makes string easy to see so you can master and perform tricks like a boss Comes w/ access to online video tutorial by Ty the Diabolo Guy on how to properly size your string CUSTOMERS SAY: Best diabolo string! | Love the color. Aptly named | Nice & tight for great spin time Check out our full line of premium KickFire Diabolos--choose from the Comet, Nova and Super Nova