99.9999999999%* Pure Nickel Tabs - custom, organic, free-range lasercut tabs to make building 4p configuration batteries using 21700 cells much easier.
You are going to need a rowdy spot welder to weld 0.2mm thickness nickel consistently. Common sense required. Beware of the sparky sparks. * Okay, so we might be exaggerating. But these are spot tested with salty waterboarding and from a known-good supplier.
Smoooth and thicc. No sharp edges - avoid shorts, don't be a prick
Almost a no brainier...if you need to build a 21700 4p pack, these will do you real nice!