... 3.Prompt delivery 4.OEM service SGEL2403 Flat feet insole/Gel Arch Support Correction Pads/metatarsus varus Key Specs:Comfortable silicone ... gel arch support helps reduce pain in feet, ankles, knees, legs and lower backSilicone ... : These soft and flexible silicone arch support are the ideal solution for those with flat feet, rigid steps, high, weak ...