This "Amber Pure" necklace is designed for babies with teething symptoms. Recommended age of children is from 3-4 months to 2+ years. It should be worn close to the skin for natural pain relief. Amber beads provide natural remedy without the use of drugs. Each necklace is hand made from natural high quality Baltic Amber. Only natural Baltic Amber is used to make these beautiful necklaces. "Amber Pure" does not use melted, pressed or reconstructed amber. This is a GENUINE Baltic Amber which is the world's finest amber. The necklace uses barrel screw clasp. Barrel screw clasps consist of two round threaded cylinders where one end screws into the other end by twisting them around several times. They provide greater security than magnetic or hook type clasps. The amber beads are strung on strong cotton thread. There is a knot on either side of each bead so if the necklace were to break the beads would not scatter. What is amber teething necklace and how it works: Baltic Amber teething necklaces are the ideal solution when you choose to care for your baby in a natural way. When a baby is wearing amber teething necklace on the skin, the skin's warmth releases healing oils and resins from the amber which are absorbed via the skin into the bloodstream. Amber is not a stone and therefore warm to the touch, as well as very comfortable and light to wear. Amber is known to reduce inflammation of the throat, ear and stomach and to fight infections and respiratory disease. Traditional beaded amber necklaces are a less intrusive remedy for the pain and side effects of teething, such as lack of appetite, upset tummies, ear ache, fevers and colds. A natural analgesic, amber will help calm a baby without resorting to drugs. Amber's anti-inflammatory and therapeutic properties are also recognized by allopathic medicine. These necklaces are long known for the healing properties of amber which include calmative, analgesic, antispasmodic, expectorant, and febrifuge function.