Designed for AccuRelief Single and Dual Channel TENS Devices - ACRL-2001 and ACRL-3001.Snap electrodes make it easier to attach and detach from the lead wire connectionEach padﾠcan be reused up to 30 timesIncludes electrode placement guideSmall Pack Includes:ﾠ4 sets of 2 reusable electrode pads and 1 lead wire