Microsteam, 400 microsteam holes for perfect steam distribution. 3-way auto shutoff turns iron Off in 8 minutes if left vertical and 30 seconds if left horizontal or tipped over. Extra large 10 oz. transparent water tank with graduation lines for precise readings. Features: large thermostat knob, self clean, vertical steam, scratch-resistant soleplate, comfort handle, and large soft-touch rear for extra stability.