Babies are captivated by the swirling sparkles and glitter. The transparent design allows your little explorer to watch a symphony of colors, shapes, and textures swirling within, providing endless fascination and visual stimulation. It’s the perfect tummy time activity as babies roll it back and forth on play mats.  The Baby Calm Down Bottle comes prefilled with sparkles & water and is totally sealed. This mesmerizing bottle is a sensory haven for little ones, engaging their senses and fostering exploration in a safe and delightful manner.