This is a 20-Pack of KTS brand Lithium 3V Coin Battery CR2032. The CR2032, 3 volt coin battery, is used in many devices, including LED lights, calculators, and cameras. They have a long shelf life, ideal temperature resistance, and superior storage capacity. They are a NEW OEM, we have repackaged them into 20-pack trays for retail sale. They are sold exactly as pictured, and do not contain any additional parts.