Your baby will love this lightweight mobile - mine does. For newborns aged 0 - months, the mobile is designed to entertain and stimulate little babies, who will be fascinated by the contrasting patterns in black and white. The mobile is also perfect to hang in small spaces. The cardboard frame measures approx. 22x22cm and has rounded corners. The mobile comes as a cardboard frame from which you pop out the four square shapes which will hang from the patterned frame. Easy to assemble and instructions included.