While blow-drying, the Wet Brush Osmosis Speed Dry brush gently untangles knots without snagging or tugging. This hair brush with vents keeps hair healthy and strong. You will notice the difference as soon as you use it, and you won't want to use another hairbrush ever again. Speeds Drying Time: The open vented design expedites the drying time by allowing moisture to be extracted from the hair more quickly. Bristles that are heat-flexible: While blow drying, the HeatFlex heat-resistant bristles gently untangle. The bristles are safe for blow-drying. Comfort Design: For added comfort, the brush shape follows the contours of the scalp. For Every Type of Hair: Ideal for thick, wavy, textured, curly, and straight hair.