Neck Hair Guide is the best tool to create and maintain a clean neck and straight hairline along the back of the neck. Can be used with razors trimmers hair clippers hair clippers or shavers. An elastic headband secures the template firmly in place. Portable and Easy to Clean Our neck hairline template can easily fit in your bathroom drawers or a toiletry bag to make it easier to refresh your haircut at home or when youre traveling for vacation or business. One size fits all. Made of plastic to fit the shape of the back of the neck comfortably.