ELECTRODE LEAD CABLE (3.5mm) + 8 OVAL MASSAGE PADS COMPATIBLE w/ EROSTEK ET-312 This is a nice Electrode Pad/Cable Combo with 8 Small Oval Electrodes. They are durable and flexible electrodes that are excellent for applying around joints such as wrists or elbows. Oval Pads are Great for application to fingers, toes, or small joints, or direct application. They are good quality and come with a thick layer of non-irritating conductive gel that adheres well to your skin, but leaves no sticky residue when the electrodes are removed. Electrodes are Reusable They wipe clean with a damp cloth. Small Oval Pad Measurement are : 30mm x 40mm or 1.18"x1.57" Snap Diameter Connection is 3.5mm Each Pair (Set) of Pads are packaged in a resealable storage bag. Includes 8 SMALL Oval Pads (4 Sets) Includes 2 Snap Connection 3.5mm Plug Electrode Cable These high-quality pads are compatible with many brand name massagers on the market with leads that connect to the 3.5mm pin snaps on the pad. Feel free to message me if you have questions on compatibility. Thank you and have a wonderful day!