First, the formula on these polishes was awful. It was extremely thick, goopy, and tacky. The nail polish felt like it was half dry before I even painted it on my nails. The magnet on these bottles is attached to the brush, and it doesn't have a lip on it, so it was near impossible for me to keep a steady hand, and not hit my wet polish with the magnet. The magnets included with these polishes just wasn't working for me, so I tried it out with the China Glaze magnet instead. Still, hardly any image appeared! The only one that really even kind of worked was the green, and that had the worst formula of all of them. I'm sure it's a bit obvious, but I would never recommend these. I would rather have bought one 8 dollar magnetic than have two of these horrible polishes.