Meh save your coins [SEP] Kinda works kinda doesn’t. If you file first it works a little better but it still takes quite some time for the polish to crack off. I’d say at least 10 mins and 15/20 before it’s actually ready to be completely removed. Didn’t work as well on glitter polish. I wouldn’t buy again. Save your money and do it the old fashioned acetone foil way. This isn’t worth it.