Material: Silicone Size: 2.5 * 5 cm Height: 2 / 3.5 / 5 cm Color: Gray, Black, Pink Quantity: 2 pairs Package content: 2 * Invisible silicone inner reinforcement insoles 1. Elastic soft material: The heel lift insert is made of highly elastic silicone material, which softly supports the heel, offers strong adhesion, and stays securely in place inside the shoe. These durable heel cushions are reusable and suitable for both men and women. 2. Reduce heel discomfort: The insert features a U-shaped design that conforms to the foot. The soft, elastic material provides comfort during wear. The insole's bottom has a honeycomb structure that helps relieve pressure on the sole and enhances slip resistance and stability. 3. Adjustable height: The height-increasing insole consists of three layers that can be added or removed using the honeycomb buckle system, allowing customizable height adjustment. Minimum height: 0.8 inches (2 cm), maximum height: 2 inches (5 cm). 4. Sweat-absorbing and breathable surface: Unlike low-quality, rigid, and uncomfortable insoles, these cushions feature a velvet layer on the surface to improve comfort and assist in moisture absorption. 5. Application: Suitable for men and women, these insoles fit a wide range of footwear, including running shoes, dress shoes, boots, athletic shoes, work shoes, and leather shoes. Designed to provide discreet support.