Feature:1. High Quality Silicone: Made of high quality Silicone, it is safe to use and durable.2. Strong Adsorption: Strong adsorption performance, not easy to fall off, you can use it with confidence.3. Precise Treatment: Small electrode bowl, treatment is more precise and more practical.4. Applicable Scenarios: Fitness equipment, health massage, music instruments, sports trends, extreme challenges.5. Wide Range of Uses: Suitable for auxiliary treatment of knee osteoarthritis, cervical spondylosis, lumbar disc herniation, lumbar muscle strain, sciatica, soft tissue sprains, etc.Specification:Item Type: Negative Pressure Adsorbed ElectrodeMaterial: Silicone, stainless steelApplicable Parts: Suitable for small joint partsInner Diameter: Approx. 50mm / 1.97inApplicable Machine: Electrotherapy instrumentApplicable Scenarios: Fitness equipment, health massage, Musical Instruments, sports, extreme challenges.Scope of Application: Suitable for auxiliary treatment of knee osteoarthritis, cervical spondylosis, lumbar disc herniation, lumbar muscle strain, sciatica, periarthritis of shoulder, soft tissue contusion and so on..Package List:1 xAdsorbed Electrode