SMART SIZE: With the cutting line, it can be cut freely to fit your size perfectly. It can be used for all kinds of sports shoes, casual shoes, work shoes, etc. GREAT MATERIAL: - Magnetic massage insole: soft mesh, elastic EVA, high quality magnet. Elastic, comfortable, responsive, non-toxic and gentle to your skin, anti-itch and prevent foot odor, let you enjoy comfort while walking EXCELLENT MASSAGE FUNCTION: - With the magnetic massage point, the magnetic therapy insoles can effectively massage the feet and promote blood circulation, promote the foot reflection point, reduce foot fatigue and muscle pain, improve sleep quality, body endurance and health COMFORTABLE ON YOUR FEET: -For people with cold feet, Acupressure Slimming Insoles can keep feet warm, prevent feet from getting cold and freezing. Also, reflexology insoles can provide extra stability to improve foot balance, they can be the perfect gift for a loved one or yourself WHAT WILL YOU GET? : -1 pair of breathable magnetic therapy insoles, the magnetic pad can be cleaned and reused. Note: As it is a massage insole, foreign bodies may form on the sole during the first use. But after a while, you will feel the soles of your feet relax Materials Analysis: Weak Magnetic Magnets + High Elastic EVA + Suede