Our Awarenss bracelets were specifically designed for Cancer Fighters and Survivors. We give back 20% of proceeds from sales to the corresponding program or foundation to help support the fight to cure Cancer ! Gray is for Brain Cancer = www.abta.com Pink is for Breast Cancer = Susan g. Komen www.komen.org Each has 10mm Beads in semiprecious genuine stone. Pink is Pink matte Opal. (Price is per each)Stretch fits average sixe 8" wrist.