A nice Variety Electrode Pad Combo with 4 Large durable and flexible electrodes, 4 Small Oval, 4 Small Circular Round electrode Pads, and 4 Long Massage Pads, 4 Wide/Big and 4 Square Pads. The Long Pads are excellent for applying around major areas such as upper or lower back or legs. The small pads are great for smaller joints with small pads such as wrists or elbows. The Massage Pads are flexible pads, and are durable, and feature a thick layer of non-irritating conductive gel of which adheres nicely to your skin,but leaves no sticky residue with removal These pads can be also 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. The small pads are also nice for treatment/therapy for a more concentrated area of current. Electrodes are Reusable They wipe clean with a damp cloth. Large Palm Shaped Pad Measurements are: 3" (7.5 cm) by 1.77" (4.5 cm). Snap diameter connection is 3.5 mm. Oval Pad Measurements are : 30mm x 40mm or 1.18"x1.57" Snap Diameter Connection is 3.5mm Small Round Circular Pad Measurement are : 1.37" wide around Snap Diameter Connection is 3.5mm Long Rectangular Pad Measurements (not including tab) are: 3.54" (9 cm) length by 1.89" (4.8 cm) wide. Snap pin diameter on the Pad measures 3.5 mm. Wide/Big Pad Measurements are: 3.54" (9 cm) length by 2.36" (6 cm) wide.Snap Connect diameter is 3.5mm Standard Square Pads Measurements are: 2" by 2".Snap Connect diameter is 3.5mm Each Set-Pair of Pads are packaged in a resealable storage bag. Includes 4 LARGE Pads (2 SETS),4 SMALL OVAL Pads (2 SETS) and 4 CIRCLE SMALL Pads (2Sets) Also Includes 4 LONG MASSAGE Pads (2 SETS), 4 Wide/Big Massage Pads(2 Sets) and 4 Standard Square Pads(2 Sets) 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 ReliefAnd 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!