This Babyliss Pro Ceramic Dial a Heat Tong has a 24mm size barrel making it the medium size of the range. These curling tongs will give you ringlets, loose curls or waves depending on how they are used. They have 25 heat settings so that the temperature will always be correct for your hair type. The Babyliss Pro range of ceramic dial-a-heat curling tongs are un-equaled in price, style & performance & are the much sought after tong on today's high street.