Curls Galore: Curling Iron Versus Hot Rollers : 

                     Forget about fighting with the curling iron and trying to decide which way you want the curl to spiral. Instead, enjoy the remarkably easy process with hot rollers-once you have fastened the curlers in your hair, your hair will all curl simultaneously!
It is still a good idea to use some styling products such as a non-sticky hairspray or gel to retain the shape of the curls. (Curls formed by hot rollers tend to last considerably longer for me than those I create with a curling iron, as my hair is typically resistant to curling in general.)
Tip for Hot Rollers: Try to wash your hair the night before you want to employ the hot rollers. Sometimes very clean, sleek hair tends to resist curling.
Time Involved: Hot Rollers may take about 10 minutes to warm up and anywhere from 10-20 minutes to apply, and about 15 minutes to set. (Color of curler will revert back to original color to indicate that the curl has set.) Add additional time as necessary for styling your locks if you intend to use barrettes, bobby pins or other adornments and styling products.

Curling Iron Versus Hot Rollers:
1.Both beauty appliances require time to heat up, but hot rollers may require a few extra minutes.
2.Hot rollers are very easy to use when styling the whole head or a section, but don’t count on them to curl your ends out or under. Leave that to the curling iron!

3.Color of hot rollers indicates when they are ready to use and when your curls have set.
4.Curling iron gives great flexibility for choosing between loose spirals and tight ringlets, but you can always brush out your curls formed by hot rollers to achieve the style you desire.