Colorful laughing wolf sticker with a hidden secret! Expose this friendly canine to a black light and see the hidden demon dog inside! This sticker is approximately 4inches tall by 3 inches wide with a transparent border for seamless application. IMPORTANT: keep out of prolonged direct sunlight. There is no UV protection for the ink (so the invisible in can react to UV light) and will fade if exposed to the elements. His glowing personality is best enjoyed in a dark room anyway! 🐺🌑