Invisible Height Increaser, Build Self-Confidence: There are three heights (1.5cm, 2.5cm, 3.5cm) for you to choose, please choose the style and height that suits you according to suit different shoe styles and occasions High quality PU material: The insole is made of high quality PU material and the bottom with honeycomb structure. Excellent elasticity, resistant to deformation. It can not only increase the height, but also with cushioning function, provide comfortable foot feeling, provide effective support for the heel, and absorb the impact force on the heel during walking, relieve heel pain . No Slip: With the sticky honeycomb bottom, the insole does not move when placed in the proper position inside the shoe. Washable in warm water below 30C and reusable / Dry in a well-ventilated place / Do not expose to direct sunlight.