What they are, V blocks. I haven't tested them for quality as I don't have an equalizer or other concurrency checking hardware, so don't expect great accuracy.
π Enhanced Connectivity with Fluke IR3000FC Infrared Connector
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Car seat JUNION Ebby group 0+/1/2/3 (0-36 kg), Isofix, dark gray
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β‘ Pro Fluke T6 1000 Electrical Tester for Enhanced SEO
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