Features: brand new and high quality The specially selected size is 5x5cm/1.97x1.97inch, which fits firmly and can provide reliable and comfortable treatment current. The use of electrode patches can help improve blood circulation, promote metabolism, and eliminate fatigue. It is suitable for various intermediate frequency electronic physiotherapy machines. A specially designed hole on each mat with a diameter of 2mm/0.08inch to release the generated heat, provide more comfort and less stimulation. Self-adhesive design, easy to stick and tear off without hurting the skin, and can be reused. The use of medical grade non-woven electrode pads has lower impedance, more uniform current distribution, no hot spots, more comfortable, and safe to use. Specifications: Material: Plastic+Cloth Size: Approx. 5x5cm/1.97x1.97inch Hole Diameter: Approx. 2mm/0.08inch Package Includes: 10x Electrode Patches note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.