HAIR TOOLS WAVING IRON Large (18mm 3/4").The Hair Tools Waving Iron has a two switch temperature controls and come complete with a PVC zip up bag for easy storage.Temperature: Low: 115oc / High: 140oc (+/10%).Available in: Mini 9mm (3/8"), Small 13mm (1/2"), medium 16mm (5/8"), large 18mm (3/4") and jumbo 38mm (11/2").