These are various amounts of rollers that can be used to set the curls you want. The heat from these curls will eliminate the need to get a full roller-set at a salon or at home and deal with wetting your hair just to roll it up. These will allow your hair to be voluminous in any way you set it.
Prices range from $25 – $120, which depends on how many or types of rollers are in the set. Check out more here.
It’s just like sitting under a hair dryer for heat without the hair dryer. Think of doing this (pictured below), but with the hair setter. You can decide what size you want and how many you will need based on the count of rollers within the hair setter.
These looks are a few of what can be achieved with the hair setter or any type rollers: