ARTSKILLS-Poster Flash Reusable Star LED Poster Lights With Peel and Stick Foam Squares. These are a fun way to light up and add dimension to your poster or sign. This package contains five 1-1/4 inch stars that have five LED lights in each; peel-n-stick foams squares and non-replaceable batteries. Conforms to ASTM D 4236. Imported.