Features Innovative improved NUK shape, designed after the mothers nipple for a better fit in the babys mouth. Extra-wide ventilation holes for maximum air circulation, ideal for babys sensitive skin. Thinner and narrower pacifier neck to reduce pressure on the jaw and teeth. Durable and reusable carrying case. BPA-free (BPA-free), 1 piece per package.NUK Space Silicone Pacifier : suitable for babys sensitive skin. The pacifier offers enough space for natural sucking movements and fits perfectly in the babys mouth. Available in various models, with a special housing that allows for additional sterilization in the microwave. Recommended by experts : NUK pacifiers support your childs healthy development and are jaw-friendly. 100% of orthodontists confirm that NUK pacifiers do not cause incorrect closure of the teeth or jaw. Each NUK Space Silicone Pacifier comes with a practical holder for hygienic sterilization and safe transport.