Great quality, easy to spot weld and solder. Save a lot of time cutting up nickel would recommend.
I can rave enough about these, perfect try sized for 21700 8p configuration packs. These take battery building from a chore to a breeze! Love these, I always keep a good stock of these, in a pinch and with some creativity these can be "reconfigured" with a pair of snip into 6p or 4p strips