We Promise Our Baltic Amber Necklaces Are Certified as 100% Authentic Amber. Safety Knotted (Individually Knotted) Beads and a “Twist Clasp” Closure Provide Added Safety and Prevent Choking. 32-33 cm Long. Measure before buying – Choose the right size for you. Our Products have a 100% Money Back Guarantee (Valid 1 year from date of purchase).