Ceramic Hot Rollers For Voluminous Curls: These 12 rollers use Ceramic technology to provide an even heat transfer for long lasting curls; They heat up quickly and evenly in 85 seconds; Velvety covering on the rollers helps protect hair from heat damage.Easy To Use: When the ready dot illuminates, use 1 inch of hair in each roller and secure with a super clip. Leave rollers in for 20 minutes for bounce and volume or 10 minutes for looser waves. Clean the unit and the heating strips with a cloth when cool. Dimensions- 4.75 x 4.75 x 11.75 inchesFull Set: Includes 12 ceramic flocked rollers in one size for custom curls and waves; Twelve 1 1/2 inch jumbo rollers; This special set includes 12 flexible metal pins and 12 super clips to hold your hair securely and keep the rollers in place.Heat Wave: To ensure that your hot rollers heat up, place the hot roller container on a flat surface with the cover tightly closed to prevent heat from escaping. Wait 85 seconds for the hot rollers to get up to a temperature between 140F-230F before using.Conair Hair Care: Since 1959, we have made innovative small appliances, hair styling tools, and more; Our hair care line includes high quality hair dryers, brushes, styling tools, and hair accessories.