These TENS Self Adhesive Electrodes require no gel, no tape and zero fuss. You simply peel the backing off the electrodes and place them directly on the skin. They cover a large 50x50mm surface area so you can cover key sensory receptors on your mid and lower back during use with electrical nerve stimulation devices. As the TENS Self Adhesive Electrodes are also reusable, you can reapply as often as you need to and store them for multiple uses. Ideal for reducing painful sensations during labour. The Self Adhesive Electrodes are also suitable for post-natal and alternative pain-relief purposes using these machines.