Scunci satin smooth no-damage black elastics are your secret to effortless all-day hold. Slide into any situation without worrying about hair slippage. 4 mm for better hold on different styles. Soft metal-free elastic bands keep ponytails tight while working out or for casual style and won't damage your hair. Easy to carry in purse or workout bag so you can change looks instantly. 4 pack of 18 ensures that no matter where you put one down you'll always be able to pick one up. Basic black - as essential as the little black dress. SCUNCI 18PK 4MM SATIN BLACK Elastics,.