We have now already the 3rd amber necklace of amber I like because my son is 8 years now and a longer chain needed. The delivery was as always very fast and the contact to the seller due to special request concerning the length and Delivery to the birthday of my son very friendly and effective. My Son Wears amber necklaces since his birth. Teething We did not have the slightest difficulty. Unlike many other parents, we had no trouble with roaring child and sleepless nights. My son has the chain always loved so much that I have each bought him the next size up if the previous size was too tight. Meanwhile, an amber necklace has almost become a part of it and I think they also have teething addition has quite positive influence on him. The quality and workmanship I like amber-chains is top and I hope that we also can get the next required sizes from there. So thumbs up and a definite buy recommendation.