Replacement Electrode Pads for Digital Massager Units and TENS Electronic Therapy Machines Electrodes are Reusable They wipe clean with a damp cloth. The Measurements are: 3" (7.5 cm) by 1.77" (4.5 cm). Pin diameter is 3.5 mm. Includes 60 Pads (30 sets). Set (2 pads) is packaged in a resealable storage bag. 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: EliKing PCH IQ Massager-ALL Models Irest iSmart Magic Massage Magic Masseuse MassagePod Palm Echo Therapulse Massageo Tony Little Pinook Massage Mouse XP Smart Relief And all other units that have the standard 3.5mm electrode snap Feel free to message me if you have questions on compatibility. Thank you and have a wonderful day!