Maximum Strength - this Patches with Herbal Formula for Muscle Discomfort and Joint Areas like Knees, Shoulders, and Neck,Safe and without side effects Generous & Practical Design: Each patch measures 3.1 x 4.7 inches (8 x 12 cm) for wide coverage, with 4 boxes (80 patches total) that are lightweight and easy to use anytime, anywhere. Long-Lasting Relief: Provides consistent heat for extended relaxation and comfort throughout the day. Versatile Use: Perfect for those with sedentary or active lifestyles, including drivers, cashiers, seniors, laborers, and athletes. Healthy Alternative: This patch features a natural formula, making it a healthy and effective heat therapy option for those seeking a natural soothing experience. ASIN B0DTYPTKT7 Brand Name LEEOYINK Unit Count 80 Count Item Weight 0.28 g Manufacturer LEEOYINK Item Dimensions 3.94 x 0.55 x 6.3 inches Product Benefits Soothing and comforting, strengthening joints Additional Features Fast-Acting