8 x 4 inches each. Advanced hydrogel patch technology. Stretchable. Effective. Long lasting. Convenient & not messy. It works! Tiger Balm has a nearly 100 year history of pain relief. Joint the many that say, it works! Formulation absorbed with hydrogel technology. Soft flexible backing. Unique pain relieving patch. Tiger Balm Large Patch is a flexible pain relieving patch. Once applied, the ingredients penetrate the skin and are absorbed, thus stimulating blood circulation around the area of pain. The product provides fast, long lasting pain relief and comfort for hours. It is not messy or greasy and will not stain your clothing. Its thin design can be comfortably worn unnoticed underneath clothing. Product of Taiwan.