chance you get a good bottle [SEP] does not matter where you buy them who you buy from etc there is a chance you get a good bottle of polish and a chance you get a bad one i have bottles from different places different colors blue white and black and the blue one is good the white one is meh and the black one is completely useless the white and black have bent brushes and the white polish is a bit dried out but not the worst kind of reminds me of using white out before they changed the formula and it got all watery and they changed to a sponge applicator from a brush the black one is awful it is literally just clumps of dried out polish with some occasional damp spots the blue one is okay the polish is alright but i would not recommend using the brushes that came with these but buying a separate skinny brush for line work or whatever it is you want to doi should mention i have been using them to fix an enameled piece of jewelry as opposed to doing nails as that is what the jeweler recommended nobody local repairs enamel resin and buying enamel is very expensive and you end up with a ton leftover so a jeweler i trust recommended nail polish with a good resin sealant and that is what i have been doing initially i had used an x acto knife to cut painters tape around the shapes of different colors and metal but switched to this pink colored liquid latex paint i saw on a youtube video for nail designs and it is much easier