Sonny and Reed bracelets are Made in the USA from non-toxic, FDA approved material and strung on elastic cording. Safe for baby to hold or teeth on. Conforms to all CPSIA standards, BPA free, Pthalate free, lead free, PVC free. Teething nubs on each bead gently and safely massage tender gums. Each bracelet is made of beads which are solid with nubs on one side, smooth on the other.