Andux Silicon Fixed Supporting Bar Pressure Movement Protection Knee Pad Health Protection STK-1102 The new three-dimensional weaving makes it have excellent ductility and breathability and provide a stable and lasting elastic support. Silicone gasket can enhance the stability of the knee, provide intermittent massage, reduce meniscus pain and patella pressure. Bendable metal spring strips were attached to both sides of the kneecap to keep it from deformation. Ergonomic design provides stronger support for knee muscle, tendon and ligament. Using double-hole design in the rear knee fossa of the kneecap, and the latest technology of knitted fabrics to make you feel extreme comfortable in the rear knee fossa. Shipping time: 9-12 working days.