Large 38mm quartz-ceramic barrel for smooth curls , High heat up to 235C for fast styling The BaByliss Rose quartz curling tong is designed to create beautiful soft, loose curls. The 38mm salon barrel that heats up fast has a smoothing quartz-ceramic coating which helps create smooth, shiny, free-flowing waves. With 6 heat settings from 160 C, to 210 C you can choose the temperature That is right for your hair type.