1.INVISIBLE THREE HEIGHTS: The half insoles are invisible design. Nobody would know the secret of your increased height. Three optional heights are perfect for different occasions like meeting, appointment, wedding, shopping or any events where there is a camera lurking about. 2.HIGH-QUALITY MATERIAL: Made of soft and durable medical-grade gel, the inserts with honeycomb design are crafted to fully absorb shock and reduce stress on heels with every step. More soft yet stable, provide enough support to your feet. 3. ALL DAY COMFORT: The odor free velvet fabric can highly wick away moisture and keep your feet fresh and dry all day long. The honeycomb bottom with stickiness prevent insoles slipping inside your shoes. The U shape heel cup helps maintain stability and position the heel naturally to make your heel more comfortable. 4.SPORTS, WORK & LEISURE: The heel cushion inserts are perfect for improving performance and reducing fatigue in daily life. Good cushioning effect can reduce impact on the joints and muscles, relieving pains caused by leg length discrepancies, heel spurs, achilles tendinitis.