ENTIL Fast Heating Hair Straightener Brush with Auto Shut Off & Temperature Control 3D Ceramic Bristles - The hair straightening brush spreads heat uniformly across the 3D ceramic bristles, which never pull hair, achieving stylish straight hair with radiance from root to tip for more natural look. Ion Straightening Brush - Rich negative ions generated from the ionic straightening brush help prevent static and care hair covering even the cuticle layer, resulting in shiny, healthy hair free of frizz and tangles. Controllable Temperature - The straightener brush is programmed with 9 temperature settings to fit for all hair types: 280-320℉ (140-160℃) for thin/ fragile hair, 340-390℉ (160-180℃) for normal/ wavy hair, 410-430℉ (180-200℃) for coarse/curly hair. Smoke free home.