Review (5/5): finally organized
I am using these to organize my nail polishes. I used an adhesive tab [[ASIN:B00QXJFS9U Tombow Xtreme Tough Tabs, 48 Pieces (62134)]] to stick a sample to each bottle. The backs are completely flat. The colors look pretty accurate on these off-white nails. They can even be filed as easily a natural nail. You get plenty to practice on if you want to try some new nail art.