The product in question is a cheap 14.5 cm (5.5 in) corn trimmer that includes an extra blade. A corn trimmer is a tool used to remove hard, dry skin from the feet, especially in areas like the heels and soles of the feet. This corn trimmer seems to be a more affordable option compared to other models on the market. The extra blade can be useful for replacing the original blade when it wears out or for having a spare. However, it is important to note that using a corn trimmer requires caution and care to avoid injury or damage to the skin. Instructions for use BETER ECONOMIC CORN CUTTER 14.5cm + 1 blade 24138 is a product used to remove dead skin and calluses from the feet. For correct use, it is recommended to follow these steps: 1. Wash and dry your feet thoroughly before using the callus remover. 2. Make sure the blade is clean and sharp. 3. Place the callus cutter tool on the affected area and apply gentle pressure. 4. Use gentle, controlled movements to remove dead skin or calluses. 5. Avoid cutting too deep to prevent injuries. 6. After using the corn cutter, clean the blade with soap and water and dry it completely before storing it. Keep in mind that it is important to be cautious when using these types of products and to follow the manufacturers instructions. If you have any questions or concerns, we recommend consulting a healthcare professional or podiatrist.