If you purchase front and rear seat covers from our store you do not need this option because we include free head rest covers. This option is for those who only want front or rear covers. If you purchase only front covers and want head rest covers too this is the option for you. This is an add on only item and may not be purchased alone. These custom fit head rest covers will come being the same material as your purchased seat cover and must be purchased at the same time as your custom seat cover or they wont be added to your order. Once again please dont order these add on head rest covers if you have purchased a quantity of 2 seat covers ( front and rear ) because you will get all head rest covers totally free if you do so.