Ebene Bio-Ray Metal Support Knee Guard really help alot to reduce the knee pain after my mom try it about a week time. Before she put on this product her knee always pain when climb up to staircase. According to my mom her knee feel warm after put on this product from Ebene and she totally feel satisfy with it. Really thanks to 100 comments given a chance for my mom to try on it and it is really help her alot.