Use it together with hair dryer/blower. Makes your hair curly without damage. Its special design can change the wind direction and make the hair slightly in draft. Doesn"t blow out of style. Usage: Step 1 Wash hair, partially dry and apply a thermal spray; Step 2 Put windspin diffuser on blow dryer. Step 3 Put sections of hair in the windspin diffuser, turn on blow dryer low to moderate heat; Step 4 Move Diffuser up and down on hair section for aprox. 15 seconds then repeat on all sections of hair you want curled. See Photos For Sample Hair Dryer.