Safe and non-toxic material: These baby hanging stroller crib toys are made of polyester with soft PP cotton filling and are non-toxic. BPA-free. No fluorescence. No peculiar smell. No harm to babies. Soft and comfortable. Suitable for toddlers and babies. Note: These rattles do not play a musical sound. They can jiggle into ringing sounds. A sound is produced when jiggled or pressed, which helps baby hear better. Sensory toy: This toddler toy plush rattle with crinkly paper (tactile and audible), a safety mirror (curiosity), a rattle ring (practical ability and audible), a sound button (grasping and hearing), and a colored rubber ring. The butterfly vibrates and makes a noise when pulled. This way, baby gains first experiences with its own grasping, hearing, and touch senses. Teether Design: This baby hanging rattle toy is equipped with a teething aid a leaf-shaped teether that fits baby's small hand and is easy to grasp and hold. Safe and non-toxic. Babies can chew safely and relieve their teething discomfort. It can soothe your baby. Hanging Design: This baby hanging toy has a plastic C-clip ring hook that can be easily hung on a stroller, crib, or car seat. It is very convenient to hang. Fun Baby Gifts: Designed for babies, this plush toy will delight babies and stimulate their natural curiosity. Suitable for 0-3 months, baby toys 3-6 months, baby toys 6-12 months, baby toddler toys, and toddler toys 1-3 years for babies and girls.