This works quite well and accurately for measuring angles on larger objects. Measure the inside corners of smaller items where the "legs" aren't as long. There are better tools for this as long as the kit doesn't come with a bubble level (it doesn't come with a digital scale). For protractors alone, this has more utility: https://www.amazon.com/GemRed-Digital-Finder-Protractor-Stainless/dp/B00W395R5E/ref=sr_1_2?crid=1SJEU2S2NHBQL&dchild=1&keywords=digital+protractor&qid=1629263365&sprefix=digital+ protrac %2Caps%2C254&sr=8-2 The horizontal spirit level was accurate when rotated 180 degrees to a flat horizontal surface for verification. However, when the same test was performed on a vertical surface, the vertical bubble level deviated by almost 1/3 of a bubble. It's probably a pattern defect, but it'll still be returned for a refund.
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