Specifications: Material: Polyester, Spandex Style: Bohemian Size: Girth 48cm; Wide 9.9cm Contain: 4 x Headbands Suitable for: Yoga, work out, morning makup and nighttime moisturizing, after washing your hair, morning dog walking Steps to retie/retwist the knot of criss croos headbands: Step 1: The knot can\'t be untied, but it can look like untied sometimes. Step 2: Find the seam of your headband. Step 3: Make the seam inside of the loop and spread two bands on each side of the seam. Step 4: Then the knot will appear again. How to stitch buttons: Step 1: We have got buttons with 4 different colors to match the different headbands. Step 2: Find the right lcoation on the band, and then mark it. Step 3: Sew the button on the band at where you just marked. Step 4: Wear your mark on, make the final adjustment.