Ramune is a Japanese soda that has the marble in the top. The kids love these sodas just for the marble that you need to "pop" into the soda to make the carbonation. You need to take the stopper from the top once you break the seal open, then you push the stopper into the top of the soda, and you will see the marble drop into the soda. Enjoy the fun refreshing drink. **Shipping glass isn't easy and sometimes accidents happen. In the event of breakage/damage, please be sure to take pictures of the complete box as well as the damage that occurred. Our policy requires photos and damage report within 24 hours of product receipt.