Crown Brush Mascara Spoolie (25 pieces per pack) is designed to prevent the cross contamination of mascara products when using one mascara on multiple people. To use, take a new and unused mascara and dip spoolie into tube to collect product. Apply to lashes until all of the mascara has been removed from the spoolie. Do not redip into tube, grab a new disposable spoolie and repeat steps until lashes are coated to desired amount. Throw away spoolies after use.