Labels are water, oil, and weatherproof. They can be used indoors or outdoors on most smooth surfaces. Please clean and dry the surface of your object before applying labels. For best results we recommend allowing 24 hours for the label to adhere before exposing the area to rain or snow.  ------------------------------------------------------------------------ Labels are sized proportionally, the width may vary due to characters in the word but the height will remain consistent to ensure uniformity. Small - Max 6 inches width and no more than 2 inches height. Large Max 8 inches width and no more than 2 inches height.