Perfecting curls requires work, and using a heat tool takes extra effort and may cause damage. Insider rounded up four easy-to-use products to help you curl your strands without any heat. Ditch the curling iron and try items such as the Aurora Band, a single foam Velcro roller that forms bouncy curls, or use flexi rods to create natural curls overnight.br br Flexi rods: Curlformers: JANYUN hair rollers: The Aurora Band: www.aurorahairproducts.com.