With the double-bristling technology,each nylon bristle is specially tufting in two different lengths that bring the most impressive detangling effect on the hair as well as create styling hair than ever.The ultra-flexible nylon bristle provides smooth brushing throunghout the wet or dry hair.Brand-new brushing experience the long and short bristle come in various forces that work alternatively when brushing the hair. The long bristles help to detangle the haie while the short bristles are giving additional massage effect without scratch he scalp.Bio-Tech Bristle-Keratin&Moraccan Argan oil infusedw ith a significant breakthrough of material application technology,the nylon bristle is now infused with Argan oil and Keratin oil,which have been lately found beneficial to hair and have been broadly used as hair conditioner products.