SecurePro Products 6 Cat Alert Safety Warning Window Door Stickers; In Case of Fire Notify Rescue Personnel to Save Cat Save Your Cat's Life; These Stickers Alert Rescue Workers and Firefighters That There are Pets Inside "Cat Alert" Rescue Warning Stickers; 3" x 3" Square Vinyl Adheres Almost Any Type of Surface; Wood, Vinyl, Aluminum; Adheres to Standard Doors, Windows, Storm Doors and Windows Easy to Apply, Peel-n-Stick, Adhesive on Back, Weatherproof 1 Year Warranty; Made for Outdoor Use; Packs of 20 Stickers Available on Amazon