6.5% Menthol topical analgesic patch. 5 1/2 z 4 in. 1 large patch. Deep, penetrating heat. Direct relief to the point of pain. Not messy or greasy. Relief lasts up to 8 hours. Absorbine Jr. Pain Relief Patch is the safe, convenient way to relieve sore muscles and backaches. The patch has a soft, flexible backing that adheres and removes easily - it bends and flexes as you move. Absorbine Jr. Ultra Strength Pain Relief Patch is not greasy or smelly and can be worn underneath clothing without detection. Made in Taiwan.