Many Ukuleles do not come with any way to attach a strap, this strap is designed to be used with ukuleles that not have strap buttons. Ukulele Strap made with two hooks or clips, allows standing with Ukulele without hands, let's say that's a hands-free ukulele strap. 1,5 cm ( 0,59") wide strap, length 103-136cm. High quality hook lined with high strength synthetic material.to protect your instrument's finish and sturdily latch on to the sound-hole of the ukulele. Works well with almost all size of ukuleles, Soprano, Concert, Tenor.