2.3cm height size: 13*5.8*2.3cm</br>3.3cm height size: 13*5.8*3.3cm</br>4.3cm height size: 13*5.8*4.3</br>Material: Memory foam & EVA</br>Fits most style of shoes, sneaker, boot and trainer</br></br>Product Description</br></br>- Can effectively prevent your foot soles slipping inside your shoes, and increase the comfort of your shoes. <br> - Soft springy and comfortable silicone insoles with good damping effect, helping to relieve your foot pain and fatigue when walking and suitable for standing a long time. <br> - Invisible design makes nobody notice you wearing them. <br> - No deformation, no wear and tear, suitable for different styles of shoes, such as boots and athletic shoes. <br> <br> Package incldue: 1 pair shoe inserts</br><br/>http://www.amazon.com/gp/product/B016BEF05I