Pretty basic kits, found while SDing around my local WM. A pile of them all marked from $19.9x to $4.50. Have seen as low as $3 in some places (e.g. 13057). Cannot find anything of use at the WM site, but the following shows at BS for the USB-C kit. This one includes 2.4A wall charger, 2.4A car charger, 3350mAh portable battery, carrying pouch and both micro USB and USB-C charging cables.
https://brickseek.com/walmart-inv…=75557326
The also had a micro USB version, but the only difference seems to be that it is missing the USB-C cable. I see on eBay that they also make a lightning version, which apparently includes microUSB and lightning cables. Didn’t see that or would have picked a few of those up too. I do not have BS links for any others as I only got the USB-C kit and can’t find any at Walmart’s web site.