32 pc Massage Pads (Large) for TENS Machine, Digital Massager Electrodes are Reusable They wipe clean with a damp cloth. Measurements are: 5 cm by 5 cm or about 2" by 2".Snap Connect diameter is 3.5mm Includes 32 Pads (16 sets). Each set (2 pads) is packaged in a resealable storage bag. These pads can be used for areas of the body that are flat, like back or thighs. They are great 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. **AND, AS AN ADDED BONUS*** => A SET OF 2 SMALL OVAL ELECTRODES WILL BE INCLUDED WITH YOUR ORDER Note: These high-quality pads are compatible with the following machines in addition to others that use pads with the 3.5 mm snap-on connectors: EliKingPCHIQ Massager-ALL ModelsIrestiSmartMagic MassageMagic MasseuseMassagePodPalm EchoTherapulseMassageoTony LittlePinookMassage Mouse XPSmart Relief And all other units that have the standard 3.5mm electrode snapFeel free to message me if you have questions on compatibility. Thank you and have a wonderful day!