PA Vinyl Letters Removable 4" Pp Black 2pc- Pressure-sensitive vinyl, easily removable, repositionable, with excellent water-resistance and light stability. For walls, outdoor signs, and more. Sticks to most flat and curved surfaces such as- glass, plastic, metal, painted wood, aluminum, and even some types of concrete walls. For walls, outdoor signs, and more. Contains one 4" upper case and one 3" lower case letter.