For each bracelet sold, Essential Jewels will donate 10% of the purchase price to Autistic Self Advocacy Network. Bracelet is made with 8mm non magnetic hematite stones. Available in several sizes. To determine your size, measure your wrist with a fabric tape measure If you want a size that is not listed, please reach out to me, I will gladly make whatever size you request. Pair with our Autism Awareness earrings, available in a separate listing