2 Sizes of Overnight Curls: heatless curlers comes with 1.5-inch and 0.5-inch rods with a flat-top design that contours closely to the head. Unlike traditional heated tools, our heatless curling rod creates healthy, natural waves without heat .The jumbo rod creates voluminous waves or gentle curls, while the small overnight roller forms medium to tight curls. (Tips: Moisting or hairspray the hair before use would keep longer curling effect.) All-In-One Curler Set: heatless curling set includes: 2 no heat curlers, 1 pcs hair bonnet, 4 pcs scrunchies, 2 hair clips, 1 storage bag, and 1 spray bottle—no extra accessories required. The heatless curls with bonnet and hair clips work together to provide a secure hold, minimizing slipping and loosening. Suitable for All Hair Types: no heat curls overnight is perfect for creating all kinds of curls for long, fine, thick, curly, straight and medium hair. The flexi rods create soft, voluminous waves, deliver hair volume and bounce with ease, making them an ideal choice for those who style frequently and prioritizes hair health. Tips:Not recommended for short hair. Easy to Use:1. Slightly moisten dry hair with spray bottle.2. Secure the heatless rollers with hair clips on the top of your head. 3. Wrap one side of your hair around the overnight curlers and secure.4. After braiding, wrap it with scrunchies.5. Wear the bonnet overnight for up to 6 hours and wake up with natural curls. Suitable for Various Placement: Upgraded overnight curlers is made of crystal-soft material and easier to fold and carry.No heat hair curlers set comes with everything you need which is perfect for daily life such as fitness, trip, sleep, makeup or housework—making it easy for you to achieve charming curls anytime.