HealthmateForever long life pain relief Combo Assorted Replacement Electrode Pads/Patches for lower back pain, spine pain, around calf, thighs for better circulation of water, blood, or toning muscles at abdominal area, around biceps, triceps, thighs etc. long life snap on replacement massage massager pads patches, medical non-woven fabric, flexible for joints area and flat areas L XL XXL pads