Details:<br />app 6.8g for each one<br />app 6.2cm long<br />app 4.9cm in diameter<br />Colour:blue，pink，peachblow (we will send it by random)<br />Instruction:<br />very very easy to use<br />No pins， No clips<br />better use of hair dryer，<br />DIY you hair at home，<br />Never ever make any damage to your hair!<br />Package Included:  12pcs hair roller