Lidocaine Pain Relief Gel Patches - Back/Shoulders/Neck/Knees/Elbows - 3.9 x 5.5inMaximum strength patches provide fast acting, numbing relief for muscle and joint pain Formulated with 4% lidocaine to temporarily relieve minor aches and pains Self adhering design conforms to the body's contours for secure, comfortable placement Provides up to 8 hours of continuous relief Odor free for discreet use 10 x 14 cm size adapts easily to various application sites Ideal for homecare, clinics, and rehabilitation settings WeCare Lidocaine