Our FOCUS hair tie bracelet set aims to please with perfectly coordinated neutrals and gold metal accents. The intersecting arrows on the round gold charm symbolize friendship, pointing in the right direction, and hitting your desired destination. Medium is the size of a normal hair tie band. It fits wrists between 5-6.4" around. Small is better for younger girls and small teens.  It fits wrists under 5" around. Large is sized for wrists 6.5-7.5"