This cordless straightening iron provides fast, efficient hair straightening without heat damage and frizz because it uses 1 1/2" wide ceramic plates fused with tourmaline, a pyroelectric mineral that releases negatively-charged ions when heated, eliminating frizz and static electricity from hair at the cuticle layer to give hair a naturally-smooth, shiny sheen. The iron has 30 heat settings, and takes 90 seconds to achieve an ideal temperature for straightening, and can reach a maximum of 395 F. The plates distribute heat evenly without hot spots that can damage hair. Straightener: 11" L x 3" W. Charging base: 4 1/2" Diam. (1 1/2 lbs.)