Patent Ukulele Strap Model：KUS200 Material : Nylon 1 ½ inch--Fully adjustable to maximum length of 51.6 inches   Patent Number:201320205402.6 KUS200 series ukulele strap is Kavaborg patented design product.    It can be used on any ukulele and you don't need drill hole to install nail on ukulele body, artificial drill hole will cause ukulele damage.    Patented design has changed the traditional use way, you don't need hook the strap on the sound hole or destructive drill hole to installation of straps.    KUS200 series ukulele strap is the world's safest and easiest to install ukulele strap, Patented design eliminate the trouble of installing straps      KUS200 series ukulele strap used double-sided glue material from America 3M Company , this material does not cause damage to the surface ukulele and can be reused, you find that the location was torn bright as new unused traces.        Installation Method:  . Take down the strap either end with a double-sided glue velcro  . The back of the paper will tear off and place the glue side glued to the upper and lower ends ukulele  . The strap either end glued on 3M glue velcro