I recommend Kaibeura.

This is the Kai Pink Pearl Compact Eyelash Curler. Unlike regular curlers, it has a straight shape, making it easy to carry in a pouch. It is a great curler to pack when traveling. It curls your lashes naturally, and it comes with spare rubber tips so you can replace them if they wear out. It is a great product because of its cute design and the fact that it doesn't take up much space.