【Effects Expected from Insoles/Inserts】Gel in the heel absorbs impact when your foot strikes the ground, which can help to relieve foot fatigue. They can lead to ideal foot balance, promote blood circulation, reduce fatigue, and alleviate knee pain, lower back pain, and stiff shoulders, thus preventing injuries. 【Antibacterial and Deodorizing】Using a cotton cloth material with highly moisture-absorbent carbon fiber, the activated carbon also provides significant deodorizing function. The holes provide a solution to prevent stuffiness. 【Great for Various Situations】Recommended for the following situations: 1. When exercising 2. Standing work 3. Adjusting the size of shoes that are too big 4. For those using shoes with thin soles or hard shoes 5. Reducing foot pain 6. Fatigue relief support 7. Replacement for damaged insoles, etc. 【L Size】25.5cm～28cm. Approximately 0.5cm thick at the toe and approximately 1cm thick at the center of the heel. *Please note that shoes may become tight depending on the type of shoe. 【Size Adjustable】Easily cut with scissors at home, allowing for fine adjustments to fit your shoes. (※Shoe sizes vary by manufacturer, so it is recommended to cut slightly larger and adjust after placing it in the shoe.)