Built-in bell paper Sound paper inside and built-in bell design.It will make a gentle sound when baby pinch it. Baby rattle Socks Foot finder socks have bells and sound paper inside, encourage baby to reach and grab.touching and sensing are baby explore the world. Draw Baby Attention Cute animal Donkey in bright color and distinguishable shape of animals attracts baby to grab and play. Exercise physical coordination Wear on arms and legs, increase the physical ability of baby in their early infant development, improve their physical strength to catch and grib the rattles and socks. BABY DEVELOPMENT TOY: The Bright Colors and Contrasting Patterns of Wrist Rattles Foot Finder Socks for Infants Help Stimulate Baby's Visual Development, Color Cognition, Hands Development, Animal Cognition and Parent-Child Interaction. Wrist Rattle Have Velcro Can be Adjusted at Will, Baby Non Slip Foot Finder Socks Stretchable for Better Fit Baby's. Developing Motor Skills: Help your baby boy and girl find and reach their feet with their hands by promoting their eyes, ears, and hand's ability with our scientifically proven Wrist rattles foot Finder Rattle design. The high-contrast patterns develop hand-eye coordination and simulate your baby's brain. BABY TOYS 0-6 MONTHS: Our black & white & Purple sensory design with a cute animal zebra & Donkey theme is made with cotton polyester material, completely child-friendly, non-toxic, and harmless. The adjustable wrist straps are universal for babies ages 0-6 months. Small bells built inside the wrist rattles and socks help your baby's hearing and voice development RISK-FREE PURCHASE: We stand behind Baby Rattle Socks Wrist Strap Rattles Set product and offer a full refund if you're not satisfied with your purchase. Your satisfaction is our top priority, and we welcome any questions, concerns, or comments you may have.(Set includes 8 pieces: 4 Pcs Wrist Rattles Straps and 4 Pcs rattle socks ) PERFECT BABY GIFTS: Give the perfect cute and educational gift to a New baby, Infant, Friend,Baby Gift, New Born Baby Gift, Children's Day Gift, Halloween Gift, Christmas Gift, Thanksgiving Gift, Birthday Gift, Baby Shower Gift