High-speed, low-noise window ventilation fan, providing fresh air with a retractable design. - Brand: Tbfyou - Type: Window Ventilation Fan - Features: High speed, low noise, deodorizing function - Size: 123-148cm - Installation: Window frame installation - Design: Retractable, Color: Black Thank you for viewing. I purchased this on Amazon and realized I had the wrong size after the return period had passed. As shown in the image, I purchased it for 22,999 yen. I opened the package once to try to install it, so please be aware of that. Please feel free to ask any questions. However, I work night shifts, so my replies may be late at night.