DESIGNED FOR EVERYDAY USE Many People Have This Experience: After A Long Journey, Climbing, Playing Ball, And Running. Legs, Waist, And Back Will Be Painful For Several Days. This Is Because During Exercise, The Pressure On The Knee Joints, Spine And Feet Is Several Times Higher Than Usual TAKE CARE OF YOUR FEET, MORE COMFORTABLE AND CORRECTIVE INSOLES The Comfortable And Soft Sole Material And Arch Design Make Your Feet Feel Comfortable And Soft During Exercise, Effectively Reducing Collisions. Prevents And Relieves Heel And Arch Pain Associated With Replacement Feet, The "Anti-Slip" U-Shaped Heel Is Firmly Fixed On The Foot And Will Not Slide Near The Sole Of The Foot To Prevent Slippage And Effectively Protect The Movement Of The Foot. FEATURE The Insole Is A Fully Functional Insole, Suitable For Walking, Running And Exercising. High-Quality Insoles Can Enhance Comfort And Stability, Allowing You To Do More With Less. HOW TO USE Step 1: The Current Insoles Of Your Shoes May Be Detachable, Please Take Them Out First. Step 2: Please Trim The Outline To Fit The Size Of The Shoe (At The Bottom Of The Insole Near The Toe) Foot Care Experts Recommend Replacing A Pair Of Shoe Insoles At Least Every Three Months.