YouTang(TM) Round Creative Transparent Acrylic 18-note Wind-up Musical Box,Musical Toys,Tune:Romeo&Juliet(A time for us),Clear Round Creative Transparent Acrylic Musicl Box Transparent material which can see how the movement work 18 note wind up gold-plating musical movement You need to wind up the movement to play music The gold ring is removable,which can put a small photo in,please see the picture shows,great give for your boys/girls