Hand crank cooler.

This hand-crank cooler is a compact, electricity-free cooling solution designed for portability and reliability. By turning the built-in crank, the user manually drives an internal airflow and cooling mechanism, generating immediate cooling without batteries, fuel, or external power. The system is ideal for outdoor use, emergencies, travel, or areas with unreliable electricity. Its simple mechanical design makes it durable, easy to maintain, and long-lasting. The cooler features efficient air circulation, a protective grill for safety, and a sturdy housing optimized for smooth operation. Lightweight and user-controlled, it provides cooling exactly when needed, turning human effort directly into comfort. The hand crank allows full control over cooling intensity, making the device both practical and energy-conscious.

To assemble it, there are holes for pegs for the stands and the gears have to be glued onto the cylinders, the cubes also have to be glued on top of the turbine support cylinders. For the grill, to attach and detach it, pegs included have to be used. Steps to assemble it are also given.