Attention please：Factory made a mistake about this batch of goods in FBA warehouse，4 of chrome powders only 0.2gram,others all ok for 0.5gram.So we are offering a discount on this batch of products. How to use: 1.Apply a base coat on your nail and cure by UV/LED lamp until it totally dry. 2.Apply any color Gel on your nail,Preferably black,Because usually a black background works best for chrome powder,and cure by UV/LED lamp 60-120s until it totally dry. 3.important!This step will determine if you can make a mirror effect or not. Apply no wipe top coat on your nail,can't be any other top coat if you want mirror effect,and cure by UV/LED lamp 10-20 seconds(Depends on the power of the lamp),if it's too dry will be hard to apply powder,but if it's too wet,it will not get the mirror effect.Please try more to achieve the best results. 4.Take a small amount of powder with a cotton swab in the bag,and apply it onto your nail until the color completely covered. 5.Apply top coat and cure by UV/LED lamp until it totally dry.finished. Questions:How many kinds of powders are there?And what are their characteristics? Answer:Here has 1 holographic flake and 1 holographic powder for 35micron,they works perfectly on all the base colors. And number 3 and number 4 are Aurora powder,they are color shifting effect when they apply on black base,we also called it chameleon.But they are too popular on clear base and nude base,amazing aurora effect,That's why they're called aurora powder. Number 5 is chameleon pigment,it will get the best effect on a black base,Green to Blue to purple to red to gold.This is a perfect color for color shifting pingment powder. Number 6 is chameleon powder also,at least 3 colors shifting. Number 7 is Gray chrome powder.Number 8 is bronze chrome powder.Number 9 is sliver chrome powder.number 10 is gold chrome powder.