Colorful loops made from soft, pliable plastic are easy to grasp and hold, plus caregivers can refrigerate it transforming it into a cooling teether. The center cube contains a soft-sounding rattle that encourages cause and effect learning while providing auditory stimulation. This award-winning teether rattle is a must-have for newborns and teething babies. Made of pu tubing (polyurethane) and as such does not contain BPA or PVC and meets the CPSC and European requirements for phthalates.