Pure Nikel Strip H type for Spot Weld. You can use this Nikel strip to solder also. Very easy to solder on this nikel strip. This type of nikel strip will reduce the time for making and make your battery pack more easily. This nikel strip can carry more current than normal nikel strip. Only fit for 32700/32650 battery. Plz use Battery spacer for more safety. Length of strip 1 meter.