The hair rollers I've been using lately

These are hair rollers I bought at Daiso for 1,000 won. I purchased a slightly larger size and have been using them. I am using them on my bangs, and just using a hairdryer makes them curl nicely into round shapes. However, if I leave the rollers in place while doing other things and then take them out, my hair is still nicely curled. If you are pressed for time, I think using the hairdryer along with the rollers helps to curl your hair a bit faster.