Minglewood Trading EMS Heart Star of Life Wife Husband Vinyl Decal Sticker - 4" x 4" EMT Emergency Medical Services Size: 4" x 4" High grade vinyl has an outdoor durability of up to 6 years. Can be applied to any smooth surface. (ex: Windows, plastic, metal, wood, glass, binders, skateboards, cars, computers, guitars, bottles, phones, etc.) Removable but not reusable. Not static cling. Cut to order from a solid color sheet of vinyl, no background.