Max-Revive plasters are easy to use with fast relief and feature an elastic breathable adhesive pad. All natural herbs and ingredients are non-allergic and offers a pleasant herbal scent. Offers temporary relief of minor backache, arthritis, strains, bruises, and sprains. Max-Revive are the highest quality products, following strict GMP standards and testing. Timed release lasts 5 to 8 hours. Available in small 2.9" x 3.9" and large 4.3" x 5.9" sizes. Remove under warm water or shower. The main ingredients are Menthol and Methyl Salicylate.