BOOKNOOK DXF- SVG, Precision-Crafted for Laser Cutting, Bringing Vintage Charm and Adventure to Your Bookshelf Decor You can use battery-operated or electric LEDs for lighting. Tracing paper is recommended for light filtering through windows. You’ll need glue when assembling the model. RECOMMENDATIONS: First, assemble the interior wall windows and doors. Then, attach them to the interior walls. After that, combine with the floor and exterior walls. NOTE: The tracing paper must be attached behind the windows and doors before assembling the exterior walls to prevent light leakage. We would be happy to assist you with any questions, and you can contact us. 🙂 PAY ATTENTION It isn’t the real product, it’s the file which you can download. No physical item will be mailed to you by post. PLEASE NOTE: Instant download items don’t accept returns, exchanges or cancellations.