DESC: For arthritis & back pains, muscle aches & strains 4 x 2.75 in Long lasting Fast acting Convenient and not messy Works where it hurts Advanced hydrogel patch technology Tiger Balm has a 100+ year history of pain relief Join the many that say, it works Formulation absorbed with hydrogel technology Soft flexible backing Tiger Balm Patch is a flexible pain relieving patch Once applied, its ingredients penetrate the skin and are absorbed, thus stimulating blood circulation around the area of pain Its warm penetrating action 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 comfortable worn unnoticed underneath clothing Product of Singapore