TamBeePlastic Vernier Caliper, 150mm Mini Caliper for School Students, Double Scale Caliper Jewelry Brow Sliding Gauge Ruler Measuring Tool 6Inch 5PCS(Black)

Does what its meant to do.

wife got these for eyebrowing...i dont even ask how or why. but kind of cool for a little plastic caliper. one somehow found its way into my toolbox and if im not needing fine measurements, these come out more often than the actual digital calipers as these dont require a battery and i can be a lot less careful with them. seems to be fairly accurate for openings/recesses or rough OD or ID of things. kinda neat, but just be careful where you stash them so your tool savvy friends wont see them and make fun of you.

These are very adequate for the price.

The vast majority of quality measuring tools for the imperial system have different length lines for quarter and half so as to easily distinguish. My one complaint about these is that all the lines within an inch of measurement are one of two lengths. Which just takes some getting use to ....

Just ok. They will measure within 1 mm. The vernier scale appears to allow reading 0.05 mm, but it is not accurate. The description says "measures to 150 mm", At first, they did not open beyond 131 mm but it was just a thin molding flash that stopped it; pushing harder sheared that off, and this model opens to 157 mm. The mm lines become broader and somewhat smudged beyond 120 mm. The 1.6mm metal rod which extends from the end for measuring depth of holes is about 1mm short, although you could fix that by sanding off the plastic end square and flush with the rod. Now you may not expect better performance from plastic calipers, but I have another style which is slightly, but noticeably better made and the vernier scale aligns correctly. You can see the difference in the photo; the slightly-better model is grey and has a ridged thumbrest not quite at the rear of the slider, and it will open to 150 mm. This black set has a smooth thumbrest which is flush with the slider back edge. NOTE: It is possible and perhaps even likely, that at this price point there is no meaningful process or quality control on these products and the accuracy variation between the two designs I noticed is just random from batch to batch.

I use this to measure the width and depth of watches, or as a reference when reading the size of a watch. This is all I need and I got 5 of them for the price of one elsewhere. Easy to read, mm and inches, they work great. Just don't use these to measure pistons or jet engine parts and you will be fine.

These were exactly what I expected. They are perfect for measuring to about a 32nd of an inch. I got these to use with a high school class and they are better than using a ruler. Don't expect the accuracy of a more expensive caliper. They are great for what they are.

It's a 5 pack of plastic calipers.For the price, they're a great deal. I grabbed this to have calipers on hand at all my workspaces as I'm still trying to get my head around measuring visualizing in metric, which is the preferred measurement of a lot of the fabrication I'm starting to work with. They're a semi-glossy plastic and very lightweight. I was impressed to find that each uses a metal rod for depth measuring.