Ensure smooth, mess-free feeding with NUK First Essentials Replacement Nipples. This 24-pack of 6-count units (144 nipples total) is designed to fit most standard baby bottles and features a vented design that helps reduce air intake to prevent colic and gas. Made from BPA-free, durable silicone, these nipples are ideal for home use, childcare facilities, and bulk baby supply resellers.