Invisible insole for height increase, from 3 to 9 cm, booster cushion, adjustable fit, shoe, heel insert, larger support, foot pad, absorbent Details: Increased height: add 3cm - 9cm height. Whether it's your sneakers, formal or casual shoes, you can fit them into almost any type and look remarkably taller. The best part is that those elevator shoe insoles stay hidden so no one ever knows the secret behind your increased height. BREATHABLE DESIGN: The insoles have air-cushioned cups that provide maximum comfort to your heels and keep you feeling relaxed all day long. The maximum thickness is also limited to an optimum value just to ensure that it does not make your shoes too tight. Features: adjustable height, stealth, comfortable, impact resistant, breathable. Material: EVA, fiber. Gender: Unisex Black color Cut: One size, full cushion free size 22.5cm-27cm; Half cushion free size 12.5cm. Manual measurement, please allow 0.5cm error, thank you very much for your understanding.