Walmart Gift card can be used at any Walmart Location or on Walmart.com online to buy things from Walmart.
You can buy anything you want using the Walmart Gift Card as long as it's at A Walmart Location or online at Walmart.com the website.
You can even use the Walmart Gift Card to buy gas at Walmart Gas Stations.
But you cannot use Walmart Gift at other stores that are not Walmart Stores because it will only be accepted by Walmart.