DIY graduation memories: Get ready to DIY! Our grad letters with light require simple assembly using a hot glue gun and batteries. You can celebrate your graduation in style with our graduation prom party decor. Large graduation marquee letters are more than just decorations, they're a fun to celebrate your big day Light up your Graduation Party: Our 4FT prom decor are the perfect centerpiece for any graduation celebration, adding a touch of joy and creating lasting memories Made of Foam Board: The prom party decor big light up letters are made of foam board, Ideal for indoor decorations or outdoor parties on fair-weather days Hot Glue Gun is required: A glue gun is NOT included in the package Good Customer Service: We're committed to providing prompt after-sales support. Your concerns will be addressed within 8 hours.