Bracelets are available in 5.5 inches for baby, bub, infant, toddler, and some big kids, knotted individually and screw clasp. For babies: Reduction of teething symptoms: fever, fussiness, red cheeks, drooling. Also helps some infants reduce symptoms caused by: colic, acid reflux, & eczema. Bracelets are not for baby to chew on, the Amber releases microscopic amounts of oil, as it warms with the body's natural temperature, that is absorbed into the skin and bloodstream. Baltic Amber contains succinic acid (anti-fever, anti-inflammatory), the compound that gives Baltic Amber teething necklaces the therapeutic quality. Teething Bracelets should be removed during naps and when unsupervised. Baltic amber is an organic substance, a “fossil resin” produced by pine trees which grew in Northern Europe. By having the baby wear the necklace everyday it helps reduce the common symptoms related to teething such as: red cheeks, fever, swollen gums, and diaper rash.