Free of BPA, phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals. No-spill nipple which features our cross-cut design. The design mimics naturaL breastfeeding as it requires your little one to nurse to receive fluid. Anti-colic nipple helps reduce the incidence of gas and spit up. Unique one-piece design eliminates cleaning headaches and tricky assembly. No extra parts to lose.