What it Does Meet the Speed Dry. Dry your hair without drying it out. The Speed Dry brush’s vented design speeds drying time by allowing moisture to escape faster, and its heat-resistant bristles gently detangle while blow drying. So you can skip the extra heat and avoid damage, keeping your hair healthy and happy. How to Use Vented design removes excess moisture and speeds drying time. HeatFlex™ heat-resistant bristles gently detangle while blow drying. Brush design contours to scalp for extra comfort. Brush + Comb Type: Detangling Brushes Country of Origin: Made in US