1.3 inch x 1.3 inch to 5.4 inch x 16.6 inch Simply Peel and Stick! Removable & Reusable! Add a dreamy addition to your baby's nursery with our Sweet Dreams Glow In The Dark wall decals. The perfect way to ensure a good nights rest for the new baby in your home, these wall stickers light up when the lights go out! Easy to remove and reposition, add to any smooth, flat surface in minutes. To install, just peel off backing and stick each wall decal to the surface. That's it!