Baltic Amber Teething Necklace is reputed to boost the immune system, reduce inflammation and accelerate the healing of wounds and thus it is the perfect soother for babies and children when teething. Amber is not actually a stone and therefore not cold to the touch. It is a fossilized tree resin from forests that were flooded by the sea millions of years ago.
The screw clasp itself is a safety feature. It is the weakest point of the necklace, and will break if undue strain is placed upon it. This is a design feature to protect against choking if the necklace is pulled hard. As an additional safety feature, there is a knot before and after each bead so that in the event of it being broken, there is no risk of choking on the beads.