Birth & up. This bright looped toy made of soft, pliable plastic is designed to encourage sensory exploration. The center cube contains a gentle-sounding rattle that promotes cause and effect. The sound will capture the infant's attention and provide sensory feedback. Item does not contain BPA or PVC. Surface wash with warm soapy water. Avoid submerging in water or placing in a dishwasher. Measures approximately 4"L x 5"H x 4"W.