Vernier Caliper, 5 Inch, Metal, High Precision, Accurate Measurement, Inner & Outer Diameter, ±0.02 mm

Does what it needs to, no complaints. The 4* is more due to the aesthetics. It feels a bit rough like brushed steel and a little thin - the mechanism is a bit stiff to begin with (I presume just because it is new). But for the price, it works and is accurate.

Inexpensively manufactured but functional measuring tool.