Designed for use from birth on up, and developed in conjunction with child development experts from Yale University, this plush toy has a chain link that connects it to any Lamaze toy or play mat. It also comes with the Lamaze link clip for easy attachment to car seats, strollers and high chairs. When babies are first born, they see in black and white. This is why Freddie strikes a balance between bright, high contrast patterns that help stimulate baby's vision, and bold solid colours that give baby's eyes a place to rest. Sounds like squeak, clink, and crinkle also help stimulate and develop baby's auditory skills. Finally, Freddie's large, friendly eyes invite baby to focus and stare at a single object, which can help calm baby while supporting healthy eye development.Made to be safe for newborns and young children, Freddie features a soft velour body that's ideal for cuddling and busy wings with a peek-a-boo mirror for interactive play. Multiple textures keep your baby interested, encouraging her to explore. Additionally, the rings clink together, and the tethered ladybug teether--which baby can pull out or store in a cute little pocket--and knotted antennae are perfect for chewing. For added fun and to aid small motor development, there's also a ball that squeaks when squeezed.