Specifications:Material: 0.3mm nickel plated iron materialPackaging: 20PCSColor: SilverSize: As pictureDescription:Suitable for all 18650 batteries, stable compatibility, and may be used as an ideal alternative for the nice and unfavourable electrodes of the battery.Note:Due to guide measurement, please allow an error of 1-3mm. Please be sure that you do not mind before bidding.Due to the diversities between assorted monitors, the images might not mirror the actual coloration of the item. Please seek advice from the actual picture received. Thank you very much.