Improve the child's hand-eye coordination: The cute animal baby wrist rattle can not only attract the baby's attention, but also exercise the baby's color discrimination ability and hand-eye coordination ability. Bright and rich colors can visually stimulatechildren's eyesight and improve children's hand-eye coordination. If you need sensory toys to help your baby grow, this baby rattle socks newborn toy will be perfect. . Inspire your baby to explore: Each set includes 2 foot socks and 2 wrist rattles. There are also bells inside. When the baby's wrist sock shakes, it will make a sound to encourage the baby to reach out and grasp, enhance hand-eye coordination, awakenauditory awareness, and enhance motor skills. The trembling of hands and feet drives the sound. Your baby will find the source of the sound to help your baby explore and learn. . Reassuring Baby Playset: Newborn rattle woven from natural cotton, comfortable, non-toxic, skin-friendly and hypoallergenic, dermatologically tested and safe for baby's delicate skin. Breathable soft knitted fabric socks are perfect for baby's skin. Lovelybright colors and high-quality fabrics grab their attention. . SIMPLE AND FUN: A nifty little hobby collector for young babies who are learning to control their legs and arms. These baby rattle socks help baby learn to find his feet and hands. The wrist rattle comes with simple Velcro so it's easy to put on and takeoff. Leave enough fabric to accommodate the baby's growth. You can also attach the wrist strap as an additional accessory to strollers, car seats and chair arches. .