The stone Planet Waves 19mm Ukulele Strap is a fully adjustable ukulele strap designed to comfortably hold an acoustic ukulele for players onstage, in studio sessions, at rehearsals, or at home. The 19mm wide eco-friendly strap fabric is made from recycled plastic bottles. It requires no strap buttons or buttonholes, as it utilizes your instrument's architecture. Its soft rubber hook works with any ukulele with a standard soundhole. The length is adjustable from 19 to 26 inches.