Our Explore set includes five bracelets that double as hair ties in the perfect earthy blend of tan, pink, gray and green. The gold charm is stamped with a compass to encourage all who wear it to keep exploring 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"