Check the listing for details. 12Pcs Battery Spring Contact 10 x 9mm Positive Negative Unipolar, Two Way. Condition: New. Listed at 14.06 USD. What is this?Made of excellent quality nickel plated steel, not only offer superior conductivity but also enhance durability, effectively extending battery use time.They are designed to fit different battery compartments, suitable for a variety of appliances like remote controls and alarm clocks.What will I get?Overall Size: 10 x 9mm / " x "(L x W)Thickness: 0.3mm / 0.01"Plug type: Spring ContactMaterial: Iron, NickelingIn the package: 12Pcs x Battery Spring Plate Are there any advantages of the product?The spring contact design ensures a stable and reliable connection, withstands repeated compression and expansion, enhancing the functionality of your battery devices. How to use it?Simply insert the contact plate into the battery compartment, and it’s ready to use.