All the reasons you'll love the Doddle & Co. - Pop & Go Teether: - No need for a case! Pinch to tuck the nipple away when youʼre on the go. - Won’t pop out of babe’s mouth. - 100% silicone. No lead, PVC, BPA, latex or phthalates. - Firm nipple safe for teething babies. - Dishwasher safe.