Product details of 1Pair Arches Footful Orthotic Arch Support Foot Brace Flat Feet Relieve Pain Comfortable Shoes Orthotic Insoles Shoe Accessories Material: Silicone Color: Gray(as picture) Conversion: 1inch=2.54cm, 1cm=0.393inches Size: Approx. 5.12*2.95in Package included: 1Pair Orthotic Insole Feature: This is a new comfortable arch support with unbeatable price. Suitable for flat feet,weak arches, arch caring, sports protection etc Marked with R and L letters Warm Tip : Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item. Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated. Material: Silicone Color: Gray(as picture) Conversion: 1inch=2.54cm, 1cm=0.393inches Size: Approx. 5.12*2.95in Package included: 1Pair Orthotic Insole Feature: This is a new comfortable arch support with unbeatable price. Suitable for flat feet,weak arches, arch caring, sports protection etc Marked with R and L letters Warm Tip : Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item. Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated.