These hair bands are made of high quality matte satin fabric and durable elastic bands (inner is rubber band and cover by satin), delicate craftsmanship, comfortable and elegant, machine washable, soft and easy to wear, will not hurt your hair.Good assistant for your make up and easy to DIY your own hairstyle, make you stylish on various occasion, such as office, school, travel, party, ceremonies or under the flash, practical and beautiful for you.The unexpanded inner diameter is approx. 4cm/ 1.57 inches, the outer diameter is 11cm/ 4.3inches, max stretched diameter is 24cm/ 9.4inches, fit for most kids and adults with thin or thick hairthese multi-colored satin hair scrunchies bobbles can be applied in different occasions, you can wear them attending parties, ceremonies and daily wearing.