The Kimba straightens hair in just one stroke without excessive, damaging heat. powered by TSC - Temperature Sensor Circuit, a revolutionary new, electronic heat sensor technology that reaches operating temperature in just 45 seconds and generates phenomenal and accurate heat stability with an unmatched heat recovery time of only 6-8 seconds which virtually means a constant operating temperature with minimal drop off from roots to ends. Available in 2 sizes : 1” and 1.5”