to prevent loss of heat and damaging hot spots during styling, making it possibly the least damaging heat styling tool on the market.
another huge plus point about this (and something that i think all heat tools should have) is the fact that it has an auto shut off. this means that if you happen to rush out of the door in the morning and forget to turn it off you don't have to worry about accidently setting the house on fire. curling wands in general get incredibly hot and could do some serious damage left on all day, so it's nice having that peace of mind with these. i really 