~1 PAIR CONDUCTIVE KNEE PADS~ Benefits / Features of Conductive Knee Pads: 1 Pair of Conductive Knee Pads Great for decreasing arthritic pain and increasing circulation while providing comfort and relief of TENS massage (TENS Unit Required-Not Included) 1 Pair of Conductive Knee Pads-These conductive Knee Pads in conjunction with using a TENS Device(not included) help block Knee pain, and increase nerve stimulation while increasing circulation to decrease arthritis pain and neuropathy pain. The Conductive Knee Pads provide comfort and relief through electrical impulses that feel like a massage. These electrical impulse waves block pain signals to brain and instead provide electrical pulsating massage signals. In other words, the unit prevents pain impulses from being carried to the brain. This is called the 'pain gate' effect.Conductive Knee Garment Measurements:Knee sock/pad measurements are4.75 inches wide by 8.25 inches long circumference unstretched (measurement unstreteched)=9 inches circumference stretched (as if worn to give idea of fit)=18-20 inches The Snaps on the Knee Pads measure 3.5mm Other Benefits and Features of Conductive Knee Pads when used with TENS: Prevents pain impulses from being carried to the brain ('pain gate' effect); Improves blood circulation; Promotes metabolism; Relieves muscular pain; Helps Reduce and Control Pain to help you feel better DRUG FREERelieves muscle and joint stiffness; =>If you need a cable to go with the Knee Pads, Please select appropriate cable on Drop Down Menu at the top of this page. Please be sure to double check your jack plug size, thank you Thank you and have a wonderful day!