Nightmare Before Christmas Jack Skellington Sally Removable Wall Decor Decal Stickers Large wall decals featuring Nightmare Before Christmas favorites Jack Skellington and Sally Total of 33 decals on 3 large sheets. Large sheets measure 16 x 11 inches. 33 decals in assorted sizes; largest decals measure 14 inches tall. These decorative decals are quick and easy to apply. Reusable. Easy to reposition and remove. Perfect for any Nightmare Before Christmas fan!