Custom Paper Air Fresheners are a highly visible, inexpensive give-away or direct mail promotion. Custom scents convey a unique marketing message for automotive, travel or food related promotions. Perfect for auto dealers, car wash or detail providers, travel agents or drive thru restaurants. Includes Full, four color process imprint on one side of high quality, scented card stock, include string tied around the top to hang around your car's rear view mirror. Maximum length or width: 4". Choice of scents. Fragrance lasts 30 days. Different scent options for choosing.