ONE SIZE FITS MOST - May not fit well if you have a smaller or larger size head Small teeth help hold hair in place Headband is slightly rounded on top but not circular like traditional headbands that operate off pressure. Opened up, they look more square (SqHair) Feels weightless Doesn't interfere with your sunglasses or regular glasses These revolutionary Sqhair Band headbands are hinged so they fit like sunglasses. The most comfortable headband you’ll ever wear while providing lift and style without giving you a headache. Great for wig wearers, they don’t damage the wig and add extra security and realism to the style. Great for traveling. No lady wants to worry about her hair on a cruise or when traveling. Bring your own hairdresser with you with these fun, fashionable and functional headbands. Perfect to spruce up a casual outfit and add glitz to your basic black dress.