These are some insoles that can protect your feet from shoes. Manufactured of sturdy stainless steel material, this shoe insole is of strong structure, will not get deform or break easily. Wear them and your feet will never suffer from the nails or puncture, you can use with peace of mind. Features -Color:Silver -Material:Stainless steel -Size 39:25.20X8.30X0.10cm/9.90X3.26X0.04in -Stainless steel material made, durable and practical, these shoe insoles have a and are easy to use. -These shoe inserts not only suitable for people who participate in various sports activities, but also for people who are found of outdoor activities like hiking, camping, etc. -Put the anti-nail insole under the insole we usually use to improve the comfort of use. -High hardness, strong structure, the shoes insoles for women are not easy to deform or break for you to use rest assured. -Light weight, will not add much burden to your shoes, enables you to have satisfying wearing feeling. Package list: 1 x Pair of Shoes Insoles