These are free-size secret insoles, also known as platform insoles. A set of two pairs is included, one with approximately 1 cm thickness and the other with approximately 1.5 cm thickness. Because they are not excessively thick, they can subtly add to your height. They are also suitable for adjusting shoes with thin soles that cause pain or shoes that are too large. The size is free, so please cut them with scissors to fit your shoes. Secret shoes Platform soles