Crafted from durable foam boards, our large marquee numbers with light feature warm yellow bulbs powered by AA batteries (batteries not included). The large numbers for party decor come as numbered panels for easy assembly simply connect them using hot glue (not included) and follow our detailed instructions. Perfect for DIY enthusiasts creating birthday party decorations, wedding, engagement, proposal anniversary, retirement party decor. Please note: These birthday number sign are for indoor/calm outdoor use only (not waterproof or windproof). If you encounter any issues like non-working bulbs, missing parts, or damaged panels, our team will promptly provide solutions. Enjoy crafting your perfect magical backdrop!