extremely difficult to use [SEP] it is great that it comes with what you need but it was far more difficult than if i you just build your own nailthe gel is very sticky and my slip solution bottle was empty when i got the package so i used alcohol this was used sparingly too much breaks down the poly gel which was not enough to move the gel aroundit was a headache to use i think i will look for other polygel brands that might be better just to make the purchase worth it