Double bottles, double diapers, and double the noise. At least they are the cutest stereo system in the world. This short sleeve onesie set for audiophile twins includes a "left speaker" and "right speaker" "worlds cutest stereo" graphic. These onesies are made of sweat-shop free, 100% organic cotton. They are soft and durable and unbelievably adorable! Each onesie comes creatively packaged in a coffee bag and makes an ideal gift. Size: 3-6 mo.