This is a bare-bones Roku that can handle all your streaming needs. It isn't as fast as the Streaming Stick Plus and doesn't include Roku's more useful enhanced remote (which has a microphone for voice control and doesn't require you to point it directly at the TV). It also lacks 4K support and new features like AirPlay. It is, however, just $17 and should be fine for basic streaming. The SE is pretty much identical to the $25 Roku Express, aside from the white color.
This has been going back and forth between in-store only and the deal being expired, and so may depend on the availability at your local Walmart. If you really want this price it's worth checking the link below.