These “generic” calipers are marketed under a few different brand names (Ingooood, APG, or even without any branding at all). Nothing fancy, but it is digital and measures up to 4 inches. Some versions come with a simple case. For under $10, you aren’t going to get the more accurate metal digital caliper, but for basic applications, this plastic caliber may be all you need.
The LCD offers displays resolution to 0.1mm.