I've tried the others & this is the one that really works. Also great service via Blinc if you need it, call their direct phone number at[.]. Comes with a manual with exact instructions, but very simple to use if you just turn it on, give about 10 seconds till the indicator shows it's warm, and hold at the root of your lashes for 10 seconds, then slide about halfway up your lashes & hold for 10 seconds again. None of the other lash curlers hold - this one does.See full review