막대자석

I was a little worried about the size, but at 2.36 inches it's the perfect length for gripping safely while swiping through polish. The magnetic pull is almost startlingly strong, so you definitely need to keep it away from other magnets. Works exactly as described for creating a cat-eye effect.

Didn't expect a 2.36 inch bar this size to have so much pull, but it yanks the magnetic particles into a crisp line in seconds. I keep it on a shelf away from my other magnets since it's strong enough to snap together hard.

This bar magnet is seriously strong—it grabbed my nail polish wand from a good distance, and the slim 2.36-inch length gives a clean cat-eye line every time. Just be careful when it snaps toward another magnet, it’s no joke. Exactly what I needed.