Help for Focus, ADHD, Anger.  Works in 2-3 Days Or Your Money Back! Lapis & Amethyst Necklace is 100% Pure Genuine Semi-Precious Gemstones Ships with a Certificate of Authenticity for Toddler, PreTeen, Teen, or Adult 14 inches for preteen 5 years - 12 years 17 or 19 inch Teen Adult PLEASE MEASURE!!!  Using a string, measure where you would like the necklace to hang. Add 1” to get the size. * Amethyst: relieves stress and strain, soothes irritability, balances mood swings, dispels anger, rage, fear and anxiety. Alleviates sadness and grief, and dissolves negativity. (Aries, Sagittarius, Aquarius, Pisces Birthstones: November, December, January, February, March, April) * Lapis Lazuli: aids in stress, anxiety, and ADHD (February, March, November, December, Birthstones - Zodiac Pisces, Sagittarius) While the stones are pure, the colors in blue lapis lazuli are naturally enhanced and may fade over time.