Used for about 6 hours. I bought it for sudden lower back pain, but it went away quickly, so I hardly used it. I took a picture of the box for clarity, but it won't fit in a Yu-Packet Post, so it will be shipped without the box. This is a lower back support that provides firm support through compression. - Brand: Vantelin - Product Name: Compression Supporter - Size: Free Size - Color: Black - Features: Lower back support Thank you for looking.