The PROTECT set includes 5 bracelets that double as hair ties bringing all the ocean feels with blues, teal, and sandy neutrals. The gold charm shows a whale tale reminding everyone to protect the beautiful creatures of the sea. A portion of proceeds from this pack will be donated to the WildCoast conservation projects. Small is better for younger girls and small teens. It fits wrists under 5" around. Medium is the size of a normal hair tie band. It fits wrists between 5-6.4" around. Large is sized for wrists 6.5-7.5"