World’s thinnest and best glycerin-filled therapeutic massaging insoles provide all day relief from feet, knee, hip and low back pain. Some say we turn concrete into butter. Super thin to fit into any Danco or regular shoe. Machine washable to last 4 year or longer. 2 year replacement warranty and made in USA. Stop on by booth # 945 and let your feet / body feel the difference with a free test walk. We all know if the feet feel good the rest of the body feels good. Thanks and see you soon.