3-15/16 inch x 5-1/2 inch (10 cm x 14 cm). 9 large patches. New! For temporary relief of mild to moderate pain. Backache. Sore muscle. Sprains. Bruises. Menthol 3%. Methyl salicylate 10%. Topical analgesic. Apply for 8-12 hours. FDA approved non-prescription pain relieving patch. Effectiveness confirmed in clinical trial. www.salonpas.us Questions or comments? Toll free 1-87Salonpas. www.salonpas.us. Package not child resistant. Made in Japan.