1. Lasting comfort Designed to promote relief from plantar fasciitis, heel, forefoot, joint, and lower back pain the good arch insole aligning the body from the feet up and improving posture enhances comfort. 2. A special coating is applied on the surface to generate negative ions, so it has a good effect on foot odor, dead skin cells and athlete's foot. (Contains silver nano, platinum and germanium) 3. Compared to other hard products, using high-quality materials, the material is soft and semi-permanent use, it is excellent for shock absorption and foot fatigue. 4. When you first wear Good arch insole, you will need to get used to them so we recommend wearing the orthotics 1 hour the first day, 2 hours the second & so on, until you can wear them comfortably all day long.Contains silver nano, platinum and germanium to relieve foot odor, dead skin cells and athlete's foot. When you first wear Good arch insole, you will need to get used to them so we recommend wearing the orthotics 1 hour the first day, 2 hours the second & so on, until you can wear them comfortably all day long. Extremely Long Lasting : semi-permanent use, It is excellent for shock absorption and foot fatigue. Lasting comfort : Designed to promote relief from plantar fasciitis, heel, forefoot, joint, and lower back pain the good arch insole aligning the body from the feet up and improving posture enhances comfort.Best Sellers Rank: See Top 100 in Health & Household. Unit Count: 4.58 Ounce. Recommended Uses For Product: Heel. Use for: Feet. Color: Silver. Brand: good arch. : B0BLNNXCDM. Manufacturer: Andrew52. Date First Available: November 9, 2022. Package Dimensions: 8.26 x 6.18 x 1.1 inches; 4.64 Ounces.