... , durable 2.Harmless to your hair 3.Reusable, eco-friendly 4.Easy to use colorful salon velcro hair rollers As we are a ... , according to the roundness you like after cleaning your hair. Remove the hair rollers after one and half hour (the longer, the ... your hair and cause yellowing, bifurcate, dullness; So it is very popular with women.See below pictures for example: colorful salon velcro hair ...