Feature:This product directly from raw materials of high purity nickel plate rolling,With Good gloss, ductility and weldability.No peeling, no spots, no oxidation, no scratches.Specification:Chemical composition: NickelSize: As the Pictures ShownModel: T6 Battery Pack 4S Battery PackFeatures: spot weldableUses: 4S battery packMaterial: Nickel plated steelQuantity:20pcsPackage included:20pcs U-shaped nickel sheets for lithium batteries(Does not include battery)Note:1.No retail package.2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!