Curlformers are tools that allow you to pull through sections of hair to set the shape, and they can supposedly be used on lots of hair types, though with different results (via Insider). They've been a hit on TikTok with creators trying them out. They come in a range of shapes, giving different styles like barrel curls and spiral curls. Each set comes in different colors that twist in opposite directions, so you need to use one color on one side of your head and another on the other side, as noted by Byrdie.

To use them, you simply insert a hook through each mesh Curlformer. Then hook a small section of damp hair at the top, and pull your hair through. Use Curlformers on all of your hair, and once your hair is dry, you can remove them (via InStyle). And your hair should be set! Hairstylist Kim Kimble told Byrdie that it's best to find your largest curl and take it down first to check if it's dry. She added that it takes between two and eight hours for the curls to air dry, depending on how thick your hair is. 

There is an option to speed up the drying time with a hood and a hairdryer, but this means using heat on your hair.