Nichiban Roihi Tsuboko Cool Patch (156pcs) is a Japanese medicated pain relief patch designed for quick, cooling relief of stiff shoulders, lower back pain, joint pain, muscle aches, fatigue, bruises, and sprains. Each small, round (2.8 cm) patch contains methyl salicylate and L-menthol for anti-inflammatory and soothing effects. The discreet, skin-tone plasters are easy to apply, adhere firmly even during movement, and fit comfortably on various body parts, making them ideal for targeted, everyday pain relief.