The bow is 4 inches in length, and the band having a 6.5 inch radius. This headband is suggested to be one size fits most.
We've rated this headband with a 2 dot stretch. Meaning this one wants to give you that good hug, but not a tight squeeze.
Untie the knot from the band. Hand wash the two pieces with warm water, and a mild soap. Lay pieces flat to dry, and re-tie.