The O Rollers have come as a four pack - The soft velcro grip that once heated in the O Pod are hot from the core, which emits to the outer shell. Meaning they are hot in the hair and not in your hands, allowing plenty of styling time with no burning or rushing your style. The soft grip technology allows the rollers to be removed easily without fear of catching or dragging!The O Rollers are available in a variety of sizes - so all you have to do is decide how much volume you can handle!