ITEM NAME:20x Replacement Pads for Electrode Tens Massager Machine Units Pad Self Adhesive Descriptio n Description: 100% brand new and high quality Suitable for various medium frequency electronic physiotherapy machine. Help to improve blood circulation, promote metabolism and eliminate fatigue. Useful and safe accessory for medical care. Self adhesive, re-usable, long Life, bio-compatible, dry out Resisting. Lower Impedance, More uniform current distribution. No hot spots, more stimulation comfort. Durable construction: can even pull out from the lead wire without damage. Specially designed holes, on each pad, to release the generated heat and give more comfort and less irritation. Specification: Material: Silicone Dimensions: 8x5cm/3.15x1.97''(approx) Color: White Quantity: 1 pack(20pcs) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement..20Pcs Self-adhesive Electrode Pads Patches Tens Acupuncture Digital Therapy. Self adhesive, re-usable, long Life, bio-compatible, dry out Resisting. Specially designed holes, on each pad, to release the generated heat and give more comfort and less irritation.