Recessed Thumb Switch for Steam that cannot get knocked loose like earlier models. Heat Shield for your hands keeps them cooler than with earlier models without any barrrier.
These are the branded irons, which are manufactured at the same factory as Ace Hi irons. Quality wise, it's the same as Ace Hi irons. These are a bit heavier than the AH-100G, and economical in price. Especially, ES-85 uses a micro switch instead of a thumb switch.