Conair CHV14IX Instant Heat Jumbo and Super JumboSized Rollers Conair CHV14IX Instant Heat Jumbo and Super JumboSized Rollers A dozen 112inch diameter rollers heat up in just two minutes.Twelve pins are included to hold the rollers in place. These curlers are compact, lightweight, and efficient. the heat technology heats the rollers quickly and holds the heat to help set your curls.There is a velvety covering on the rollers that helps protect your hair from heat damage.