These Barbie themed slimy mini containers are a blast to play with. To use, simply open the container and start kneading the slime. You can stretch it, pull it, and create all sorts of shapes. When you're done playing, close the container tightly to keep the slime fresh. Keep these containers away from small children who might put the slime in their mouths. Also, avoid getting the slime on clothes or furniture as it can be sticky. If the slime dries out a bit, you can add a little water and knead it again to make it soft and stretchy.