Premium Quality Wallpaper Mucilage is easy to apply, dries clear and is water soluable. The glue is pre mixed and ready to apply- it doesn't get any easier than this. It is not necessary to prime your walls unless the color you are covering is darker than the paper you are applying. The 4 oz size will paper 3 to 4 dollhouse rooms and the 12 oz size is enough for an entire dollhouse. Both sizes are pictured but this listing is for one 4 oz. jar.