Feature: 1. Good Conductivity: Low resistance, good conductivity, more uniform current distribution, good physical therapy effect. Effectively massage acupoints and relax muscles. 2. Electrode Pad Set: Self adhesive design, easy to stick to the skin, can be used repeatedly. 16pcs of electrode pad are available, meet your use and replacement needs. 3. Multiple Applicable Parts: Can be used on neck, back, thigh, legs, waist, shoulder, arms, etc. Improve shoulder and neck pain, improve numbness and stiffness. 4. Portable Design: Necessary and practical accessory for TENS machine. Small and lightweight, easy to store and carry, suitable for home and travel use. 5. Non Woven Fabric: Multi layer structure, non woven fabric, conductive layer and hydrogel, safe and eco friendly, soft and skin friendly, comfortable to use. Specification: Item Type: Electrode Pad Material: Non Woven Fabric Size: Approx. 5 x 5cm / 2 x 2in Quantity: 16pcs. Package List: 16 x Electrode Pad (4 Bag) Note: Please allow slight error due to manual measurement. Thanks for your understanding.