'Yes! Miracles Happen' removable indoor/outdoor UP-WORD sticker can be used on most any precleaned surface. This sticker was created as inspiration for anyone who might need a boost. I LOVE the idea of placing any sticker from this collection on the back of a vehicle to spread more good will on this planet, or on a visible surface in a high-stress area like a busy office, classroom, hospital setting, fridge...anywhere to offer wise and encouraging words to those who need it most.