Our Strength set includes four hair + wristbands that hold all hair types with ease. Each band has a stripe in contrasting neutrals that makes it the perfect understated accessory for men and women. The stone colored set reminds us that we can be our own rock, and are strong enough to conquer our fears. 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" Please allow 5-8 business days for shipping.