Our Shimmer set includes five bracelets that double as hair ties in beautiful corals & creams inspired by the shimmery seashells washed up on the beach. The set features shells, pearls, & silver beads that will surely bring the sandy & salty vibes of the beach to your everyday life. 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.