I've tried the most famous Shiseido and other brands, but none of them could curl my lashes all at once. Seeing how often they pinched my eyelids instead, I realized that finding a curler with a curvature that fits your eyes well is really important. So, I bought this product with a gentler curvature, and surprisingly, the curling function itself is decent. It doesn't pinch my skin, and it's great for using as a partial curler in multiple passes.
It used to be sold at Aritaum as well, but now it seems like it is only sold offline at Olive Young.
There are three colors, and I haven't tried the others so I don't know, but seeing that only the pink one is labeled as silicone and is 2,000 won more expensive, I think it might be an upgraded version.