Features: Made of high elastic silicone material,high adsorption, durable, suitable for both men and women. Height increase half insoles are invisible design, adds height secretly. There are 3 kinds of heights to choose from: 1.5cm, 2.5cm, 3.5cm. The honeycomb design can absorb shock, depressurizing The heel lift inserts don't move in shoes, and don't cause crowding. Fit most shoes, like running shoes, dress shoes, boots, sports shoes, work shoes, leather shoes, etc. Specifications: Item: Heel Lift Inserts Material: Velvet+silicone Color: blue Height: 15mm(type1), 25mm(type2), 35mm(type3)(optional) Package Size:130*65*15mm(type1) 130*65*25mm(type2) 130*65*35mm(type3) Package Weight: 58g(type1), 99g(type2), 150g(type3) PackingList: 1 Pair*Heel Lift Inserts