Color: The Hot Dyeing Process Used Will Not Fade. You Can Wash It Freely without Worrying about Dyeing. The Color Is Not Black, Which Tends to the Natural Black of the Hair. No Filter Is Used for Shooting, and All Are Real Shots. about Why It Is Straight: after Bleaching and Washing, the Comb Is Straight, and the Natural Curvature Will Be Restored after Washing. The following Figure Shows the Curvature after Washing with Natural Qu, Which Can Be Referred. All Hand-Washed, Very Smooth, No Odor, Very Clean, Very Good Quality.