1. Increase Height: Supports the heel and adds height to make you look more elegant and confident, for office, dating, etc. 2. Fits Most Shoes:These heel elevators are suitable for both men and women and fit all types of shoes, such as running shoes, formal shoes, boots, sneakers, work shoes, leather shoes, etc. 3. Shock Absorption: The sole is made of EVA material, independent prevent slip shock absorption unit, not only good elasticity, more prevent slip. 4. Breathable and Comfortable: Good shock resistance, can reduce the impact force, multiple rows of ventilation holes, more breathable. 5. Multiple Use: The insole comes with a strong self adhesive that sticks firmly to the inside of the shoe. If the adhesive fails, simply peel it off and clean it, then air dry it and use it again. Specification: Item Type: Heightening Insole Product Color: Grey Product Height: Approx. 2.5cm / 0.98in Suitable Shoe Size: for 39-40 size PackageList: 2 x Pair of Heightening InsoleShock Absorption: The sole is made of EVA material, independent prevent slip shock absorption unit, not only good elasticity, more prevent slip. Fits Most Shoes:These heel elevators are suitable for both men and women and fit all types of shoes, such as running shoes, formal shoes, boots, sneakers, work shoes, leather shoes, etc. Breathable and Comfortable: Good shock resistance, can reduce the impact force, multiple rows of ventilation holes, more breathable. Multiple Use: The insole comes with a strong self adhesive that sticks firmly to the inside of the shoe. If the adhesive fails, simply peel it off and clean it, then air dry it and use it again. Increase Height: Supports the heel and adds height to make you look more elegant and confident, for office, dating, etc.